basic_parameters.c
1002 lines
| 60.7 KiB
| text/x-c
|
CLexer
/ src / basic_parameters.c
r23 | // In the frame of RPW LFR Sofware ICD Issue1 Rev8 (05/07/2013) => R2 FSW | |||
// version 1.0: 31/07/2013 | ||||
// version 1.1: 02/04/2014 | ||||
// version 1.2: 30/04/2014 | ||||
// version 1.3: 02/05/2014 | ||||
// version 1.4: 16/05/2014 | ||||
// version 1.5: 20/05/2014 | ||||
// version 1.6: 19/12/2014 | ||||
// version 1.7: 15/01/2015 (modifs de Paul + correction erreurs qui se compensaient (LSB <=> MSB + indices [0,2] <=> [1,3]) | ||||
// version 1.8: 02/02/2015 (gestion des divisions par zéro) | ||||
// In the frame of RPW LFR Sofware ICD Issue3 Rev6 (27/01/2015) => R3 FSW | ||||
// version 2.0: 19/06/2015 | ||||
// version 2.1: 22/06/2015 (modifs de Paul) | ||||
// version 2.2: 23/06/2015 (modifs de l'ordre de déclaration/définition de init_k_coefficients dans basic_parameters.c ... + maintien des declarations dans le .h) | ||||
// version 2.3: 01/07/2015 (affectation initiale des octets 7 et 9 dans les BP1 corrigée ...) | ||||
// version 2.4: 05/10/2018 (added GPL headers) | ||||
// version 2.5: 09/10/2018 (dans main.c #include "basic_parameters_utilities.h" est changé par les déclarations extern correspondantes ...! | ||||
// + delta mise en conformité LOGISCOPE) | ||||
/*------------------------------------------------------------------------------ | ||||
-- Solar Orbiter's Low Frequency Receiver Flight Software (LFR FSW), | ||||
-- This file is a part of the LFR FSW | ||||
-- Copyright (C) 2012-2018, Plasma Physics Laboratory - CNRS | ||||
-- | ||||
-- This program is free software; you can redistribute it and/or modify | ||||
-- it under the terms of the GNU General Public License as published by | ||||
-- the Free Software Foundation; either version 2 of the License, or | ||||
-- (at your option) any later version. | ||||
-- | ||||
-- This program is distributed in the hope that it will be useful, | ||||
-- but WITHOUT ANY WARRANTY; without even the implied warranty of | ||||
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||||
-- GNU General Public License for more details. | ||||
-- | ||||
-- You should have received a copy of the GNU General Public License | ||||
-- along with this program; if not, write to the Free Software | ||||
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||||
-------------------------------------------------------------------------------*/ | ||||
/*-- Author : Thomas Chust | ||||
-- Contact : Thomas Chust | ||||
-- Mail : thomas.chust@lpp.polytechnique.fr | ||||
----------------------------------------------------------------------------*/ | ||||
#include <stdio.h> | ||||
#include <math.h> | ||||
#include <stdint.h> | ||||
#include "basic_parameters_params.h" | ||||
void init_k_coefficients(float *k_coefficients, | ||||
unsigned char nb_binscompressed_matrix ) | ||||
{ | ||||
uint8_t i; // 8 bits unsigned | ||||
uint8_t j; | ||||
for(i=0; i<nb_binscompressed_matrix; i++) | ||||
{ | ||||
for (j=0;j<NB_K_COEFF_PER_BIN;j++) { | ||||
k_coefficients[i*NB_K_COEFF_PER_BIN+j] = 1.f; | ||||
} | ||||
k_coefficients[i*NB_K_COEFF_PER_BIN+K45_PE_RE] = 0.; | ||||
k_coefficients[i*NB_K_COEFF_PER_BIN+K45_PE_IM] = 0.; | ||||
} | ||||
} | ||||
void BP1_set(float *compressed_spec_mat, float *k_coeff_intercalib, uint8_t nb_bins_compressed_spec_mat, uint8_t *lfr_bp1){ | ||||
float PSDB; // 32-bit floating point | ||||
float PSDE; | ||||
float tmp; | ||||
float NVEC_V0; | ||||
float NVEC_V1; | ||||
float NVEC_V2; | ||||
float aux; | ||||
float tr_SB_SB; | ||||
float e_cross_b_re; | ||||
float e_cross_b_im; | ||||
float n_cross_e_scal_b_re; | ||||
float n_cross_e_scal_b_im; | ||||
float ny; | ||||
float nz; | ||||
float bx_bx_star; | ||||
float vphi; | ||||
float significand; | ||||
int exponent; // 32-bit signed integer | ||||
float alpha_M; | ||||
uint8_t nbitexp; // 8-bit unsigned integer | ||||
uint8_t nbitsig; | ||||
uint8_t tmp_uint8; | ||||
uint8_t *pt_uint8; // pointer on unsigned 8-bit integer | ||||
int8_t expmin; // 8-bit signed integer | ||||
int8_t expmax; | ||||
uint16_t rangesig; // 16-bit unsigned integer | ||||
uint16_t psd; | ||||
uint16_t exp; | ||||
uint16_t tmp_uint16; | ||||
uint16_t i; | ||||
alpha_M = 45 * (3.1415927f/180); | ||||
#ifdef DEBUG_TCH | ||||
printf("BP1 : \n"); | ||||
printf("Number of bins: %d\n", nb_bins_compressed_spec_mat); | ||||
#endif | ||||
// initialization for managing the exponents of the floating point data: | ||||
nbitexp = 6; // number of bits for the exponent | ||||
expmax = 32+5; // maximum value of the exponent | ||||
expmin = (expmax - (1 << nbitexp)) + 1; // accordingly the minimum exponent value | ||||
// for floating point data to be recorded on 16-bit words: | ||||
nbitsig = 16 - nbitexp; // number of bits for the significand | ||||
rangesig = (1 << nbitsig)-1; // == 2^nbitsig - 1 | ||||
#ifdef DEBUG_TCH | ||||
printf("nbitexp : %d, expmax : %d, expmin : %d\n", nbitexp, expmax, expmin); | ||||
printf("nbitsig : %d, rangesig : %d\n", nbitsig, rangesig); | ||||
#endif | ||||
for(i=0; i<nb_bins_compressed_spec_mat; i++){ | ||||
//============================================== | ||||
// BP1 PSDB == PA_LFR_SC_BP1_PB_F0 == 16 bits = 6 bits (exponent) + 10 bits (significand) | ||||
PSDB = compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX] // S11 | ||||
+ compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 9] // S22 | ||||
+ compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 16]; // S33 | ||||
significand = frexpf(PSDB, &exponent); // 0.5 <= significand < 1 | ||||
// PSDB = significand * 2^exponent | ||||
if (exponent < expmin) { // value should be >= 0.5 * 2^expmin | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
if (exponent > expmax) { // value should be < 0.5 * 2^(expmax+1) | ||||
exponent = expmax; | ||||
significand = 1.0; // max value that can be recorded | ||||
} | ||||
if (significand == 0) { // in that case exponent == 0 too | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
psd = (uint16_t) ((((significand*2) - 1)*rangesig) + 0.5); // Shift and cast into a 16-bit unsigned int with rounding | ||||
// where just the first nbitsig bits are used (0, ..., 2^nbitsig-1) | ||||
exp = (uint16_t) (exponent-expmin); // Shift and cast into a 16-bit unsigned int where just | ||||
// the first nbitexp bits are used (0, ..., 2^nbitexp-1) | ||||
tmp_uint16 = psd | (exp << nbitsig); // Put the exponent bits (nbitexp) next to the | ||||
// left place of the significand bits (nbitsig), | ||||
// making the 16-bit word to be recorded | ||||
pt_uint8 = (uint8_t*) &tmp_uint16; // Affect an uint8_t pointer with the adress of tmp_uint16 | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1)+2] = pt_uint8[0]; // Record MSB of tmp_uint16 | ||||
lfr_bp1[(i*NB_BYTES_BP1)+3] = pt_uint8[1]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1)+2] = pt_uint8[1]; // Record MSB of tmp_uint16 | ||||
lfr_bp1[(i*NB_BYTES_BP1)+3] = pt_uint8[0]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef DEBUG_TCH | ||||
printf("\nBin number: %d\n", i); | ||||
printf("PSDB : %16.8e\n",PSDB); | ||||
printf("significand : %16.8e\n",significand); | ||||
printf("exponent : %d\n" ,exponent); | ||||
printf("psd for PSDB significand : %d\n",psd); | ||||
printf("exp for PSDB exponent : %d\n",exp); | ||||
printf("pt_uint8[1] for PSDB exponent + significand: %.3d or %.2x\n",pt_uint8[1], pt_uint8[1]); | ||||
printf("pt_uint8[0] for PSDB significand: %.3d or %.2x\n",pt_uint8[0], pt_uint8[0]); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+2] : %.3d or %.2x\n",lfr_bp1[i*NB_BYTES_BP1+2], lfr_bp1[i*NB_BYTES_BP1+2]); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+3] : %.3d or %.2x\n",lfr_bp1[i*NB_BYTES_BP1+3], lfr_bp1[i*NB_BYTES_BP1+3]); | ||||
#endif | ||||
//============================================== | ||||
// BP1 PSDE == PA_LFR_SC_BP1_PE_F0 == 16 bits = 6 bits (exponent) + 10 bits (significand) | ||||
PSDE = (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 21] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K44_PE]) // S44 | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 24] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K55_PE]) // S55 | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 22] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K45_PE_RE]) // S45 Re | ||||
- (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 23] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K45_PE_IM]); // S45 Im | ||||
significand = frexpf(PSDE, &exponent); // 0.5 <= significand < 1 | ||||
// PSDE = significand * 2^exponent | ||||
if (exponent < expmin) { // value should be >= 0.5 * 2^expmin | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
if (exponent > expmax) { // value should be < 0.5 * 2^(expmax+1) | ||||
exponent = expmax; | ||||
significand = 1.0; // max value that can be recorded | ||||
} | ||||
if (significand == 0) {// in that case exponent == 0 too | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
psd = (uint16_t) ((((significand*2)-1)*rangesig) + 0.5); // Shift and cast into a 16-bit unsigned int with rounding | ||||
// where just the first nbitsig bits are used (0, ..., 2^nbitsig-1) | ||||
exp = (uint16_t) (exponent-expmin); // Shift and cast into a 16-bit unsigned int where just | ||||
// the first nbitexp bits are used (0, ..., 2^nbitexp-1) | ||||
tmp_uint16 = psd | (exp << nbitsig); // Put the exponent bits (nbitexp) next to the | ||||
// left place of the significand bits (nbitsig), | ||||
// making the 16-bit word to be recorded | ||||
pt_uint8 = (uint8_t*) &tmp_uint16; // Affect an uint8_t pointer with the adress of tmp_uint16 | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 0] = pt_uint8[0]; // Record MSB of tmp_uint16 | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 1] = pt_uint8[1]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 0] = pt_uint8[1]; // Record MSB of tmp_uint16 | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 1] = pt_uint8[0]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef DEBUG_TCH | ||||
printf("PSDE : %16.8e\n",PSDE); | ||||
printf("significand : %16.8e\n",significand); | ||||
printf("exponent : %d\n" ,exponent); | ||||
printf("psd for PSDE significand : %d\n",psd); | ||||
printf("exp for PSDE exponent : %d\n",exp); | ||||
printf("pt_uint8[1] for PSDE exponent + significand: %.3d or %.2x\n",pt_uint8[1], pt_uint8[1]); | ||||
printf("pt_uint8[0] for PSDE significand: %.3d or %.2x\n",pt_uint8[0], pt_uint8[0]); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+0] : %.3d or %.2x\n",lfr_bp1[i*NB_BYTES_BP1+0], lfr_bp1[i*NB_BYTES_BP1+0]); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+1] : %.3d or %.2x\n",lfr_bp1[i*NB_BYTES_BP1+1], lfr_bp1[i*NB_BYTES_BP1+1]); | ||||
#endif | ||||
//============================================================================== | ||||
// BP1 normal wave vector == PA_LFR_SC_BP1_NVEC_V0_F0 == 8 bits | ||||
// == PA_LFR_SC_BP1_NVEC_V1_F0 == 8 bits | ||||
// == PA_LFR_SC_BP1_NVEC_V2_F0 == 1 sign bit | ||||
tmp = sqrt( (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 2] *compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 2]) //Im S12 | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 4] *compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 4]) //Im S13 | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 11]*compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 11]) //Im S23 | ||||
); | ||||
if (tmp != 0.) { // no division by 0. | ||||
NVEC_V0 = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 11] / tmp; // S23 Im => n1 | ||||
NVEC_V1 = (-compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 4]) / tmp; // S13 Im => n2 | ||||
NVEC_V2 = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 2] / tmp; // S12 Im => n3 | ||||
} | ||||
else | ||||
{ | ||||
NVEC_V0 = 0.; | ||||
NVEC_V1 = 0.; | ||||
NVEC_V2 = 0.; | ||||
} | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 4] = (uint8_t) ((NVEC_V0*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 5] = (uint8_t) ((NVEC_V1*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
pt_uint8 = (uint8_t*) &NVEC_V2; // Affect an uint8_t pointer with the adress of NVEC_V2 | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 6] = pt_uint8[3] & 0x80; // Extract the sign bit of NVEC_V2 (32-bit float, sign bit in the 4th octet:PC convention) | ||||
// Record it at the 8th bit position (from the right to the left) of lfr_bp1[i*NB_BYTES_BP1+6] | ||||
#endif | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 6] = pt_uint8[0] & 0x80; // Extract the sign bit of NVEC_V2 (32-bit float, sign bit in the 1th octet:SPARC convention) | ||||
// Record it at the 8th bit position (from the right to the left) of lfr_bp1[i*NB_BYTES_BP1+6] | ||||
#endif | ||||
#ifdef DEBUG_TCH | ||||
printf("NVEC_V0 : %16.8e\n",NVEC_V0); | ||||
printf("NVEC_V1 : %16.8e\n",NVEC_V1); | ||||
printf("NVEC_V2 : %16.8e\n",NVEC_V2); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+4] for NVEC_V0 : %u\n",lfr_bp1[i*NB_BYTES_BP1+4]); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+5] for NVEC_V1 : %u\n",lfr_bp1[i*NB_BYTES_BP1+5]); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+6] for NVEC_V2 : %u\n",lfr_bp1[i*NB_BYTES_BP1+6]); | ||||
#endif | ||||
//======================================================= | ||||
// BP1 ellipticity == PA_LFR_SC_BP1_ELLIP_F0 == 4 bits | ||||
if (PSDB != 0.) { // no division by 0. | ||||
aux = 2*tmp / PSDB; // Compute the ellipticity | ||||
} | ||||
else | ||||
{ | ||||
aux = 0.; | ||||
} | ||||
tmp_uint8 = (uint8_t) ((aux*15) + 0.5); // Shift and cast into a 8-bit uint8_t with rounding | ||||
// where just the first 4 bits are used (0, ..., 15) | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 6] = lfr_bp1[(i*NB_BYTES_BP1) + 6] | (tmp_uint8 << 3); // Put these 4 bits next to the right place | ||||
// of the sign bit of NVEC_V2 (recorded | ||||
// previously in lfr_bp1[i*NB_BYTES_BP1+6]) | ||||
#ifdef DEBUG_TCH | ||||
printf("ellipticity : %16.8e\n",aux); | ||||
printf("tmp_uint8 for ellipticity : %u\n",tmp_uint8); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+6] for NVEC_V2 + ellipticity : %u\n",lfr_bp1[i*NB_BYTES_BP1+6]); | ||||
#endif | ||||
//============================================================== | ||||
// BP1 degree of polarization == PA_LFR_SC_BP1_DOP_F0 == 3 bits | ||||
tr_SB_SB = (compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX] * compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX]) | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 9] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 9]) | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 16] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 16]) | ||||
+ (2 * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 1] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 1]) | ||||
+ (2 * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 2] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 2]) | ||||
+ (2 * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 3] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 3]) | ||||
+ (2 * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 4] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 4]) | ||||
+ (2 * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 10]* compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 10]) | ||||
+ (2 * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 11]* compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 11]); | ||||
aux = PSDB*PSDB; | ||||
if (aux != 0.) { // no division by 0. | ||||
tmp = ( 3*tr_SB_SB - aux ) / ( 2 * aux ); // Compute the degree of polarisation | ||||
} | ||||
else | ||||
{ | ||||
tmp = 0.; | ||||
} | ||||
tmp_uint8 = (uint8_t) ((tmp*7) + 0.5); // Shift and cast into a 8-bit uint8_t with rounding | ||||
// where just the first 3 bits are used (0, ..., 7) | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 6] = lfr_bp1[(i*NB_BYTES_BP1) + 6] | tmp_uint8; // Record these 3 bits at the 3 first bit positions | ||||
// (from the right to the left) of lfr_bp1[i*NB_BYTES_BP1+6] | ||||
#ifdef DEBUG_TCH | ||||
printf("DOP : %16.8e\n",tmp); | ||||
printf("tmp_uint8 for DOP : %u\n",tmp_uint8); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+6] for NVEC_V2 + ellipticity + DOP : %u\n",lfr_bp1[i*NB_BYTES_BP1+6]); | ||||
#endif | ||||
//======================================================================================= | ||||
// BP1 X_SO-component of the Poynting flux == PA_LFR_SC_BP1_SX_F0 == 16 bits | ||||
// = 1 sign bit + 1 argument bit (two sectors) | ||||
// + 6 bits (exponent) + 8 bits (significand) | ||||
e_cross_b_re = (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 17] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_SX_RE]) //S34 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 19] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_SX_RE]) //S35 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 5] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K14_SX_RE]) //S14 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 7] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K15_SX_RE]) //S15 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 12] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_SX_RE]) //S24 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 14] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_SX_RE]) //S25 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 18] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_SX_IM]) //S34 Im | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 20] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_SX_IM]) //S35 Im | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 6] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K14_SX_IM]) //S14 Im | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 8] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K15_SX_IM]) //S15 Im | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 13] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_SX_IM]) //S24 Im | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 15] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_SX_IM]); //S25 Im | ||||
// Im(S_ji) = -Im(S_ij) | ||||
// k_ji = k_ij | ||||
e_cross_b_im = (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 17]*k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_SX_IM]) //S34 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 19]*k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_SX_IM]) //S35 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 5] *k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K14_SX_IM]) //S14 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 7] *k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K15_SX_IM]) //S15 Re | ||||
+ (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 12]*k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_SX_IM]) //S24 Re | ||||
+ ((compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 14]*k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_SX_IM]) //S25 Re | ||||
- (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 18]*k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_SX_RE]) //S34 Im | ||||
- (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 20]*k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_SX_RE]) //S35 Im | ||||
- (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 6] *k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K14_SX_RE]) //S14 Im | ||||
- (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 8] *k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K15_SX_RE]) //S15 Im | ||||
- (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 13]*k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_SX_RE]) //S24 Im | ||||
- (compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 15]*k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_SX_RE])); //S25 Im | ||||
#ifdef DEBUG_TCH | ||||
printf("ReaSX : %16.8e\n",e_cross_b_re); | ||||
#endif | ||||
pt_uint8 = (uint8_t*) &e_cross_b_re; // Affect an uint8_t pointer with the adress of e_cross_b_re | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 7] = (uint8_t) (pt_uint8[3] & 0x80); // Extract its sign bit (32-bit float, sign bit in the 4th octet:PC convention) | ||||
// Record it at the 8th bit position (from the right to the left) | ||||
// of lfr_bp1[i*NB_BYTES_BP1+7] | ||||
pt_uint8[3] = (pt_uint8[3] & 0x7f); // Make e_cross_b_re be positive in any case: |ReaSX| | ||||
#endif | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 7] = (uint8_t) (pt_uint8[0] & 0x80); // Extract its sign bit (32-bit float, sign bit in the 1th octet:SPARC convention) | ||||
// Record it at the 8th bit position (from the right to the left) | ||||
// of lfr_bp1[i*NB_BYTES_BP1+7] | ||||
pt_uint8[0] = (pt_uint8[0] & 0x7f); // Make e_cross_b_re be positive in any case: |ReaSX| | ||||
#endif | ||||
significand = frexpf(e_cross_b_re, &exponent); // 0.5 <= significand < 1 | ||||
// ReaSX = significand * 2^exponent | ||||
if (exponent < expmin) { // value should be >= 0.5 * 2^expmin | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
if (exponent > expmax) { // value should be < 0.5 * 2^(expmax+1) | ||||
exponent = expmax; | ||||
significand = 1.0; // max value that can be recorded | ||||
} | ||||
if (significand == 0) { // in that case exponent == 0 too | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 8] = (uint8_t) ((((significand*2)-1)*255) + 0.5); // Shift and cast into a 8-bit uint8_t with rounding | ||||
// where all bits are used (0, ..., 255) | ||||
tmp_uint8 = (uint8_t) (exponent-expmin); // Shift and cast into a 8-bit uint8_t where | ||||
// just the first nbitexp bits are used (0, ..., 2^nbitexp-1) | ||||
#ifdef DEBUG_TCH | ||||
printf("|ReaSX| : %16.8e\n",e_cross_b_re); | ||||
printf("significand : %16.8e\n",significand); | ||||
printf("exponent : %d\n" ,exponent); | ||||
printf("tmp_uint8 for ReaSX exponent : %d\n",tmp_uint8); | ||||
#endif | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 7] = lfr_bp1[(i*NB_BYTES_BP1) + 7] | tmp_uint8; // Record these nbitexp bits in the nbitexp first bits | ||||
// (from the right to the left) of lfr_bp1[i*NB_BYTES_BP1+7] | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+7] for ReaSX sign + RealSX exponent : %u\n",lfr_bp1[i*NB_BYTES_BP1+7]); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+8] for ReaSX significand : %u\n",lfr_bp1[i*NB_BYTES_BP1+8]); | ||||
printf("ImaSX : %16.8e\n",e_cross_b_im); | ||||
#endif | ||||
pt_uint8 = (uint8_t*) &e_cross_b_im; // Affect an uint8_t pointer with the adress of e_cross_b_im | ||||
#ifdef LSB_FIRST_TCH | ||||
pt_uint8[3] = pt_uint8[3] & 0x7f; // Make e_cross_b_im be positive in any case: |ImaSX| (32-bit float, sign bit in the 4th octet:PC convention) | ||||
#endif | ||||
#ifdef MSB_FIRST_TCH | ||||
pt_uint8[0] = pt_uint8[0] & 0x7f; // Make e_cross_b_im be positive in any case: |ImaSX| (32-bit float, sign bit in the 1th octet:SPARC convention) | ||||
#endif | ||||
// Determine the sector argument of SX. If |Im| > |Re| affect | ||||
// an unsigned 8-bit char with 01000000; otherwise with null. | ||||
if (e_cross_b_im > e_cross_b_re) { | ||||
tmp_uint8 = 0x40; | ||||
} | ||||
else { | ||||
tmp_uint8 = 0x00; | ||||
} | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 7] = lfr_bp1[(i*NB_BYTES_BP1) + 7] | tmp_uint8; // Record it as a sign bit at the 7th bit position (from the right | ||||
// to the left) of lfr_bp1[i*NB_BYTES_BP1+7], by simple logical addition. | ||||
#ifdef DEBUG_TCH | ||||
printf("|ImaSX| : %16.8e\n",e_cross_b_im); | ||||
printf("ArgSX sign : %u\n",tmp_uint8); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+7] for ReaSX & ArgSX signs + ReaSX exponent : %u\n",lfr_bp1[i*NB_BYTES_BP1+7]); | ||||
#endif | ||||
//====================================================================== | ||||
// BP1 phase velocity estimator == PA_LFR_SC_BP1_VPHI_F0 == 16 bits | ||||
// = 1 sign bit + 1 argument bit (two sectors) | ||||
// + 6 bits (exponent) + 8 bits (significand) | ||||
ny = (sin(alpha_M)*NVEC_V1) + (cos(alpha_M)*NVEC_V2); | ||||
nz = NVEC_V0; | ||||
bx_bx_star = (cos(alpha_M)*cos(alpha_M)*compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 9]) // S22 Re | ||||
+ ((sin(alpha_M)*sin(alpha_M)*compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 16]) // S33 Re | ||||
- (2*sin(alpha_M)*cos(alpha_M)*compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 10])); // S23 Re | ||||
n_cross_e_scal_b_re = (ny * ((compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 12] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_NY_RE]) //S24 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 14] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_NY_RE]) //S25 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 17] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_NY_RE]) //S34 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 19] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_NY_RE]) //S35 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 13] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_NY_IM]) //S24 Im | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 15] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_NY_IM]) //S25 Im | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 18] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_NY_IM]) //S34 Im | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 20] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_NY_IM]))) //S35 Im | ||||
+ (nz * ((compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 12] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_NZ_RE]) //S24 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 14] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_NZ_RE]) //S25 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 17] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_NZ_RE]) //S34 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 19] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_NZ_RE]) //S35 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 13] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_NZ_IM]) //S24 Im | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 15] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_NZ_IM]) //S25 Im | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 18] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_NZ_IM]) //S34 Im | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 20] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_NZ_IM])));//S35 Im | ||||
// Im(S_ji) = -Im(S_ij) | ||||
// k_ji = k_ij | ||||
n_cross_e_scal_b_im = (ny * ((compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 12] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_NY_IM]) //S24 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 14] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_NY_IM]) //S25 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 17] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_NY_IM]) //S34 Re | ||||
+((compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 19] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_NY_IM]) //S35 Re | ||||
-(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 13] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_NY_RE]) //S24 Im | ||||
-(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 15] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_NY_RE]) //S25 Im | ||||
-(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 18] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_NY_RE]) //S34 Im | ||||
-(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 20] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_NY_RE])))) //S35 Im | ||||
+ (nz * ((compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 12] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_NZ_IM]) //S24 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 14] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_NZ_IM]) //S25 Re | ||||
+(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 17] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_NZ_IM] ) //S34 Re | ||||
+((compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 19] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_NZ_IM]) //S35 Re | ||||
-(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 13] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K24_NZ_RE]) //S24 Im | ||||
-(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 15] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K25_NZ_RE]) //S25 Im | ||||
-(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 18] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K34_NZ_RE]) //S34 Im | ||||
-(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 20] * k_coeff_intercalib[(i*NB_K_COEFF_PER_BIN) + K35_NZ_RE]))));//S35 Im | ||||
#ifdef DEBUG_TCH | ||||
printf("n_cross_e_scal_b_re : %16.8e\n",n_cross_e_scal_b_re); | ||||
printf("n_cross_e_scal_b_im : %16.8e\n",n_cross_e_scal_b_im); | ||||
#endif | ||||
// vphi = n_cross_e_scal_b_re / bx_bx_star => sign(VPHI) = sign(n_cross_e_scal_b_re) | ||||
pt_uint8 = (uint8_t*) &n_cross_e_scal_b_re; // Affect an uint8_t pointer with the adress of n_cross_e_scal_b_re | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 9] = (uint8_t) (pt_uint8[3] & 0x80); // Extract its sign bit (32-bit float, sign bit in the 4th octet:PC convention) | ||||
// Record it at the 8th bit position (from the right to the left) | ||||
// of lfr_bp1[i*NB_BYTES_BP1+9] | ||||
pt_uint8[3] = (pt_uint8[3] & 0x7f); // Make n_cross_e_scal_b_re be positive in any case: |n_cross_e_scal_b_re| | ||||
#endif | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 9] = (uint8_t) (pt_uint8[0] & 0x80); // Extract its sign bit (32-bit float, sign bit in the 1th octet:SPARC convention) | ||||
// Record it at the 8th bit position (from the right to the left) | ||||
// of lfr_bp1[i*NB_BYTES_BP1+9] | ||||
pt_uint8[0] = (pt_uint8[0] & 0x7f); // Make n_cross_e_scal_b_re be positive in any case: |n_cross_e_scal_b_re| | ||||
#endif | ||||
if (bx_bx_star != 0.) { // no division by 0. | ||||
vphi = n_cross_e_scal_b_re / bx_bx_star; // Compute |VPHI| | ||||
} | ||||
else | ||||
{ | ||||
vphi = 1.e+20; // Put a huge value | ||||
} | ||||
significand = frexpf(vphi, &exponent); // 0.5 <= significand < 1 | ||||
// vphi = significand * 2^exponent | ||||
if (exponent < expmin) { // value should be >= 0.5 * 2^expmin | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
if (exponent > expmax) { // value should be < 0.5 * 2^(expmax+1) | ||||
exponent = expmax; | ||||
significand = 1.0; // max value that can be recorded | ||||
} | ||||
if (significand == 0) {// in that case exponent == 0 too | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 10] = (uint8_t) ((((significand*2)-1)*255) + 0.5); // Shift and cast into a 8-bit uint8_t with rounding | ||||
// where all the bits are used (0, ..., 255) | ||||
tmp_uint8 = (uint8_t) (exponent-expmin); // Shift and cast into a 8-bit uint8_t where | ||||
// just the first nbitexp bits are used (0, ..., 2^nbitexp-1) | ||||
#ifdef DEBUG_TCH | ||||
printf("|VPHI| : %16.8e\n",vphi); | ||||
printf("significand : %16.8e\n",significand); | ||||
printf("exponent : %d\n" ,exponent); | ||||
printf("tmp_uint8 for VPHI exponent : %d\n",tmp_uint8); | ||||
#endif | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 9] = lfr_bp1[(i*NB_BYTES_BP1) + 9] | tmp_uint8; // Record these nbitexp bits in the nbitexp first bits | ||||
// (from the right to the left) of lfr_bp1[i*NB_BYTES_BP1+9] | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+9] for VPHI sign + VPHI exponent : %u\n",lfr_bp1[i*NB_BYTES_BP1+9]); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+10] for VPHI significand : %u\n",lfr_bp1[i*NB_BYTES_BP1+10]); | ||||
#endif | ||||
pt_uint8 = (uint8_t*) &n_cross_e_scal_b_im; // Affect an uint8_t pointer with the adress of n_cross_e_scal_b_im | ||||
#ifdef LSB_FIRST_TCH | ||||
pt_uint8[3] = pt_uint8[3] & 0x7f; // Make n_cross_e_scal_b_im be positive in any case: |ImaNEBX| (32-bit float, sign bit in the 4th octet:PC convention) | ||||
#endif | ||||
#ifdef MSB_FIRST_TCH | ||||
pt_uint8[0] = pt_uint8[0] & 0x7f; // Make n_cross_e_scal_b_im be positive in any case: |ImaNEBX| (32-bit float, sign bit in the 1th octet:SPARC convention) | ||||
#endif | ||||
// Determine the sector argument of NEBX. If |Im| > |Re| affect | ||||
// an unsigned 8-bit char with 01000000; otherwise with null. | ||||
if (n_cross_e_scal_b_im > n_cross_e_scal_b_re) { | ||||
tmp_uint8 = 0x40; | ||||
} | ||||
else { | ||||
tmp_uint8 = 0x00; | ||||
} | ||||
lfr_bp1[(i*NB_BYTES_BP1) + 9] = lfr_bp1[(i*NB_BYTES_BP1) + 9] | tmp_uint8; // Record it as a sign bit at the 7th bit position (from the right | ||||
// to the left) of lfr_bp1[i*NB_BYTES_BP1+9], by simple logical addition. | ||||
#ifdef DEBUG_TCH | ||||
printf("|n_cross_e_scal_b_im| : %16.8e\n",n_cross_e_scal_b_im); | ||||
printf("|n_cross_e_scal_b_im|/bx_bx_star : %16.8e\n",n_cross_e_scal_b_im/bx_bx_star); | ||||
printf("ArgNEBX sign : %u\n",tmp_uint8); | ||||
printf("lfr_bp1[i*NB_BYTES_BP1+9] for VPHI & ArgNEBX signs + VPHI exponent : %u\n",lfr_bp1[i*NB_BYTES_BP1+9]); | ||||
#endif | ||||
} | ||||
} | ||||
void BP2_set(float *compressed_spec_mat, uint8_t nb_bins_compressed_spec_mat, uint8_t *lfr_bp2) | ||||
{ | ||||
float cross_re; // 32-bit floating point | ||||
float cross_im; | ||||
float aux; | ||||
float significand; | ||||
int exponent; // 32-bit signed integer | ||||
uint8_t nbitexp; // 8-bit unsigned integer | ||||
uint8_t nbitsig; | ||||
uint8_t *pt_uint8; // pointer on unsigned 8-bit integer | ||||
int8_t expmin; // 8-bit signed integer | ||||
int8_t expmax; | ||||
uint16_t rangesig; // 16-bit unsigned integer | ||||
uint16_t autocor; | ||||
uint16_t exp; | ||||
uint16_t tmp_uint16; | ||||
uint16_t i; | ||||
#ifdef DEBUG_TCH | ||||
printf("BP2 : \n"); | ||||
printf("Number of bins: %d\n", nb_bins_compressed_spec_mat); | ||||
#endif | ||||
// For floating point data to be recorded on 16-bit words : | ||||
nbitexp = 6; // number of bits for the exponent | ||||
nbitsig = 16 - nbitexp; // number of bits for the significand | ||||
rangesig = (1 << nbitsig)-1; // == 2^nbitsig - 1 | ||||
expmax = 32 + 5; | ||||
expmin = (expmax - (1 << nbitexp)) + 1; | ||||
#ifdef DEBUG_TCH | ||||
printf("nbitexp : %d, expmax : %d, expmin : %d\n", nbitexp, expmax, expmin); | ||||
printf("nbitsig : %d, rangesig : %d\n", nbitsig, rangesig); | ||||
#endif | ||||
for(i = 0; i<nb_bins_compressed_spec_mat; i++){ | ||||
//============================================== | ||||
// BP2 normalized cross correlations == PA_LFR_SC_BP2_CROSS_F0 == 10 * (8+8) bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_0_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_0_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_1_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_1_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_2_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_2_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_3_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_3_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_4_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_4_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_5_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_5_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_6_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_6_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_7_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_7_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_8_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_8_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_RE_9_F0 == 8 bits | ||||
// == PA_LFR_SC_BP2_CROSS_IM_9_F0 == 8 bits | ||||
// S12 | ||||
aux = sqrt(compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 9]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 1] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 2] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 10] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 20] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("\nBin number: %d\n", i); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+10] for cross12_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+10]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+20] for cross12_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+20]); | ||||
#endif | ||||
// S13 | ||||
aux = sqrt(compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 16]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 3] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 4] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 11] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 21] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+11] for cross13_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+11]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+21] for cross13_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+21]); | ||||
#endif | ||||
// S14 | ||||
aux = sqrt(compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 21]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 5] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 6] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 12] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 22] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+12] for cross14_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+12]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+22] for cross14_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+22]); | ||||
#endif | ||||
// S15 | ||||
aux = sqrt(compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 24]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 7] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 8] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 13] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 23] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+13] for cross15_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+13]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+23] for cross15_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+23]); | ||||
#endif | ||||
// S23 | ||||
aux = sqrt(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 9] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 16]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 10] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 11] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 14] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 24] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+14] for cross23_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+14]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+24] for cross23_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+24]); | ||||
#endif | ||||
// S24 | ||||
aux = sqrt(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 9] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 21]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 12] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 13] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 15] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 25] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+15] for cross24_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+15]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+25] for cross24_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+25]); | ||||
#endif | ||||
// S25 | ||||
aux = sqrt(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 9] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 24]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 14] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 15] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 16] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 26] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+16] for cross25_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+16]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+26] for cross25_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+26]); | ||||
#endif | ||||
// S34 | ||||
aux = sqrt(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 16] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 21]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 17] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 18] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 17] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 27] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+17] for cross34_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+17]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+27] for cross34_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+27]); | ||||
#endif | ||||
// S35 | ||||
aux = sqrt(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 16] * compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 24]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 19] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 20] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 18] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 28] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+18] for cross35_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+18]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+28] for cross35_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+28]); | ||||
#endif | ||||
// S45 | ||||
aux = sqrt(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 21]*compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 24]); | ||||
if (aux != 0.) { // no division by 0. | ||||
cross_re = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 22] / aux; | ||||
cross_im = compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 23] / aux; | ||||
} | ||||
else | ||||
{ | ||||
cross_re = 0.; | ||||
cross_im = 0.; | ||||
} | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 19] = (uint8_t) ((cross_re*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 29] = (uint8_t) ((cross_im*127.5) + 128); // Shift and cast into a 8-bit uint8_t (0, ..., 255) with rounding | ||||
#ifdef DEBUG_TCH | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+19] for cross45_re (%16.8e) : %.3u\n",cross_re, lfr_bp2[i*NB_BYTES_BP2+19]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+29] for cross45_im (%16.8e) : %.3u\n",cross_im, lfr_bp2[i*NB_BYTES_BP2+29]); | ||||
#endif | ||||
//============================================== | ||||
// BP2 auto correlations == PA_LFR_SC_BP2_AUTO_F0 == 5*16 bits = 5*[6 bits (exponent) + 10 bits (significand)] | ||||
// == PA_LFR_SC_BP2_AUTO_A0_F0 == 16 bits | ||||
// == PA_LFR_SC_BP2_AUTO_A1_F0 == 16 bits | ||||
// == PA_LFR_SC_BP2_AUTO_A2_F0 == 16 bits | ||||
// == PA_LFR_SC_BP2_AUTO_A3_F0 == 16 bits | ||||
// == PA_LFR_SC_BP2_AUTO_A4_F0 == 16 bits | ||||
// S11 | ||||
significand = frexpf(compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX], &exponent); // 0.5 <= significand < 1 | ||||
// S11 = significand * 2^exponent | ||||
#ifdef DEBUG_TCH | ||||
printf("S11 : %16.8e\n",compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX]); | ||||
printf("significand : %16.8e\n",significand); | ||||
printf("exponent : %d\n" ,exponent); | ||||
#endif | ||||
if (exponent < expmin) { // value should be >= 0.5 * 2^expmin | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
if (exponent > expmax) { // value should be < 0.5 * 2^(expmax+1) | ||||
exponent = expmax; | ||||
significand = 1.0; // max value that can be recorded | ||||
} | ||||
if (significand == 0) { // in that case exponent == 0 too | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
autocor = (uint16_t) ((((significand*2)-1)*rangesig) + 0.5); // Shift and cast into a 16-bit unsigned int with rounding | ||||
// where just the first nbitsig bits are used (0, ..., 2^nbitsig-1) | ||||
exp = (uint16_t) (exponent-expmin); // Shift and cast into a 16-bit unsigned int where just | ||||
// the first nbitexp bits are used (0, ..., 2^nbitexp-1) | ||||
tmp_uint16 = autocor | (exp << nbitsig); // Put the exponent bits (nbitexp) next to the | ||||
// left place of the significand bits (nbitsig), | ||||
// making the 16-bit word to be recorded | ||||
pt_uint8 = (uint8_t*) &tmp_uint16; // Affect an uint8_t pointer with the adress of tmp_uint16 | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 0] = pt_uint8[0]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 1] = pt_uint8[1]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 0] = pt_uint8[1]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 1] = pt_uint8[0]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef DEBUG_TCH | ||||
printf("autocor for S11 significand : %u\n",autocor); | ||||
printf("exp for S11 exponent : %u\n",exp); | ||||
printf("pt_uint8[1] for S11 exponent + significand : %.3d or %2x\n",pt_uint8[1], pt_uint8[1]); | ||||
printf("pt_uint8[0] for S11 significand : %.3d or %2x\n",pt_uint8[0], pt_uint8[0]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+0] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+0], lfr_bp2[i*NB_BYTES_BP2+0]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+1] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+1], lfr_bp2[i*NB_BYTES_BP2+1]); | ||||
#endif | ||||
// S22 | ||||
significand = frexpf(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 9], &exponent); // 0.5 <= significand < 1 | ||||
// S22 = significand * 2^exponent | ||||
#ifdef DEBUG_TCH | ||||
printf("S22 : %16.8e\n",compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX+9]); | ||||
printf("significand : %16.8e\n",significand); | ||||
printf("exponent : %d\n" ,exponent); | ||||
#endif | ||||
if (exponent < expmin) { // value should be >= 0.5 * 2^expmin | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
if (exponent > expmax) { // value should be < 0.5 * 2^(expmax+1) | ||||
exponent = expmax; | ||||
significand = 1.0; // max value that can be recorded | ||||
} | ||||
if (significand == 0) { // in that case exponent == 0 too | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
autocor = (uint16_t) ((((significand*2)-1)*rangesig) + 0.5); // Shift and cast into a 16-bit unsigned int with rounding | ||||
// where just the first nbitsig bits are used (0, ..., 2^nbitsig-1) | ||||
exp = (uint16_t) (exponent-expmin); // Shift and cast into a 16-bit unsigned int where just | ||||
// the first nbitexp bits are used (0, ..., 2^nbitexp-1) | ||||
tmp_uint16 = autocor | (exp << nbitsig); // Put the exponent bits (nbitexp) next to the | ||||
// left place of the significand bits (nbitsig), | ||||
// making the 16-bit word to be recorded | ||||
pt_uint8 = (uint8_t*) &tmp_uint16; // Affect an uint8_t pointer with the adress of tmp_uint16 | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 2] = pt_uint8[0]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 3] = pt_uint8[1]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 2] = pt_uint8[1]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 3] = pt_uint8[0]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef DEBUG_TCH | ||||
printf("autocor for S22 significand : %u\n",autocor); | ||||
printf("exp for S11 exponent : %u\n",exp); | ||||
printf("pt_uint8[1] for S22 exponent + significand : %.3d or %2x\n",pt_uint8[1], pt_uint8[1]); | ||||
printf("pt_uint8[0] for S22 significand : %.3d or %2x\n",pt_uint8[0], pt_uint8[0]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+2] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+2], lfr_bp2[i*NB_BYTES_BP2+2]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+3] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+3], lfr_bp2[i*NB_BYTES_BP2+3]); | ||||
#endif | ||||
// S33 | ||||
significand = frexpf(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 16], &exponent); // 0.5 <= significand < 1 | ||||
// S33 = significand * 2^exponent | ||||
#ifdef DEBUG_TCH | ||||
printf("S33 : %16.8e\n",compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX+16]); | ||||
printf("significand : %16.8e\n",significand); | ||||
printf("exponent : %d\n" ,exponent); | ||||
#endif | ||||
if (exponent < expmin) { // value should be >= 0.5 * 2^expmin | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
if (exponent > expmax) { // value should be < 0.5 * 2^(expmax+1) | ||||
exponent = expmax; | ||||
significand = 1.0; // max value that can be recorded | ||||
} | ||||
if (significand == 0) { // in that case exponent == 0 too | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
autocor = (uint16_t) ((((significand*2)-1)*rangesig) + 0.5); // Shift and cast into a 16-bit unsigned int with rounding | ||||
// where just the first nbitsig bits are used (0, ..., 2^nbitsig-1) | ||||
exp = (uint16_t) (exponent-expmin); // Shift and cast into a 16-bit unsigned int where just | ||||
// the first nbitexp bits are used (0, ..., 2^nbitexp-1) | ||||
tmp_uint16 = autocor | (exp << nbitsig); // Put the exponent bits (nbitexp) next to the | ||||
// left place of the significand bits (nbitsig), | ||||
// making the 16-bit word to be recorded | ||||
pt_uint8 = (uint8_t*) &tmp_uint16; // Affect an uint8_t pointer with the adress of tmp_uint16 | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 4] = pt_uint8[0]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 5] = pt_uint8[1]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 4] = pt_uint8[1]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 5] = pt_uint8[0]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef DEBUG_TCH | ||||
printf("autocor for S33 significand : %u\n",autocor); | ||||
printf("exp for S33 exponent : %u\n",exp); | ||||
printf("pt_uint8[1] for S33 exponent + significand : %.3d or %2x\n",pt_uint8[1], pt_uint8[1]); | ||||
printf("pt_uint8[0] for S33 significand : %.3d or %2x\n",pt_uint8[0], pt_uint8[0]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+4] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+4], lfr_bp2[i*NB_BYTES_BP2+4]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+5] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+5], lfr_bp2[i*NB_BYTES_BP2+5]); | ||||
#endif | ||||
// S44 | ||||
significand = frexpf(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 21], &exponent); // 0.5 <= significand < 1 | ||||
// S44 = significand * 2^exponent | ||||
#ifdef DEBUG_TCH | ||||
printf("S44 : %16.8e\n",compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX+21]); | ||||
printf("significand : %16.8e\n",significand); | ||||
printf("exponent : %d\n" ,exponent); | ||||
#endif | ||||
if (exponent < expmin) { // value should be >= 0.5 * 2^expmin | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
if (exponent > expmax) { // value should be < 0.5 * 2^(expmax+1) | ||||
exponent = expmax; | ||||
significand = 1.0; // max value that can be recorded | ||||
} | ||||
if (significand == 0) { // in that case exponent == 0 too | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
autocor = (uint16_t) ((((significand*2)-1)*rangesig )+ 0.5); // Shift and cast into a 16-bit unsigned int with rounding | ||||
// where just the first nbitsig bits are used (0, ..., 2^nbitsig-1) | ||||
exp = (uint16_t) (exponent-expmin); // Shift and cast into a 16-bit unsigned int where just | ||||
// the first nbitexp bits are used (0, ..., 2^nbitexp-1) | ||||
tmp_uint16 = autocor | (exp << nbitsig); // Put the exponent bits (nbitexp) next to the | ||||
// left place of the significand bits (nbitsig), | ||||
// making the 16-bit word to be recorded | ||||
pt_uint8 = (uint8_t*) &tmp_uint16; // Affect an uint8_t pointer with the adress of tmp_uint16 | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 6] = pt_uint8[0]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 7] = pt_uint8[1]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 6] = pt_uint8[1]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 7] = pt_uint8[0]; // Record LSB of tmp_uint16 | ||||
#endif | ||||
#ifdef DEBUG_TCH | ||||
printf("autocor for S44 significand : %u\n",autocor); | ||||
printf("exp for S44 exponent : %u\n",exp); | ||||
printf("pt_uint8[1] for S44 exponent + significand : %.3d or %2x\n",pt_uint8[1], pt_uint8[1]); | ||||
printf("pt_uint8[0] for S44 significand : %.3d or %2x\n",pt_uint8[0], pt_uint8[0]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+6] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+6], lfr_bp2[i*NB_BYTES_BP2+6]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+7] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+7], lfr_bp2[i*NB_BYTES_BP2+7]); | ||||
#endif | ||||
// S55 | ||||
significand = frexpf(compressed_spec_mat[(i*NB_VALUES_PER_SPECTRAL_MATRIX) + 24], &exponent); // 0.5 <= significand < 1 | ||||
// S55 = significand * 2^exponent | ||||
#ifdef DEBUG_TCH | ||||
printf("S55 : %16.8e\n",compressed_spec_mat[i*NB_VALUES_PER_SPECTRAL_MATRIX+24]); | ||||
printf("significand : %16.8e\n",significand); | ||||
printf("exponent : %d\n" ,exponent); | ||||
#endif | ||||
if (exponent < expmin) { // value should be >= 0.5 * 2^expmin | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
if (exponent > expmax) { // value should be < 0.5 * 2^(expmax+1) | ||||
exponent = expmax; | ||||
significand = 1.0; // max value that can be recorded | ||||
} | ||||
if (significand == 0) { // in that case exponent == 0 too | ||||
exponent = expmin; | ||||
significand = 0.5; // min value that can be recorded | ||||
} | ||||
autocor = (uint16_t) ((((significand*2)-1)*rangesig) + 0.5); // Shift and cast into a 16-bit unsigned int with rounding | ||||
// where just the first nbitsig bits are used (0, ..., 2^nbitsig-1) | ||||
exp = (uint16_t) (exponent-expmin); // Shift and cast into a 16-bit unsigned int where just | ||||
// the first nbitexp bits are used (0, ..., 2^nbitexp-1) | ||||
tmp_uint16 = autocor | (exp << nbitsig); // Put the exponent bits (nbitexp) next to the | ||||
// left place of the significand bits (nbitsig), | ||||
// making the 16-bit word to be recorded | ||||
pt_uint8 = (uint8_t*) &tmp_uint16; // Affect an uint8_t pointer with the adress of tmp_uint16 | ||||
#ifdef MSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 8] = pt_uint8[0]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 9] = pt_uint8[1]; // Record LSB of tmp_uint16 | ||||
//printf("MSB:\n"); | ||||
#endif | ||||
#ifdef LSB_FIRST_TCH | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 8] = pt_uint8[1]; // Record MSB of tmp_uint16 | ||||
lfr_bp2[(i*NB_BYTES_BP2) + 9] = pt_uint8[0]; // Record LSB of tmp_uint16 | ||||
//printf("LSB:\n"); | ||||
#endif | ||||
#ifdef DEBUG_TCH | ||||
printf("autocor for S55 significand : %u\n",autocor); | ||||
printf("exp for S55 exponent : %u\n",exp); | ||||
printf("pt_uint8[1] for S55 exponent + significand : %.3d or %2x\n",pt_uint8[1], pt_uint8[1]); | ||||
printf("pt_uint8[0] for S55 significand : %.3d or %2x\n",pt_uint8[0], pt_uint8[0]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+8] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+8], lfr_bp2[i*NB_BYTES_BP2+8]); | ||||
printf("lfr_bp2[i*NB_BYTES_BP2+9] : %3u or %2x\n",lfr_bp2[i*NB_BYTES_BP2+9], lfr_bp2[i*NB_BYTES_BP2+9]); | ||||
#endif | ||||
} | ||||
} | ||||