Low level routine
fr -
eng
decod_c - sequence by symbol multiplication computational routine
- nuc :
size of sequence vector
- nus :
size of symbol vector
- c :
address of sequence vector
- s :
address of symbol vector
- y :
address of output vector
/* decod_c subroutine
* Symbol by chip demodulation
*
* Copyright (C) 2007-2009 Alan Layec
*
* This file is part of modnumlib.
*
* modnumlib 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.
*
* modnumlib 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 modnumlib; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/* REVISION HISTORY :
* $Log$
*/
#include "modnum_lib.h"
/* decod_c routine de multiplication code par symbole
* nuc : taille du vecteur code
* nus : taille du vecteur symbole
* c : adresse de départ du vecteur code
* s : adresse de départ du vecteur symbole
* y : adresse de départ du vecteur résultat
*/
void decod_c(int *nuc,int *nus,double *c,double *s,double *y)
{
/*Déclaration des variables compteur*/
int i,j;
int ind_y;
/*Réalise multiplication code[j] par symbole[i]*/
for (i=0;i<(*nus);i++) {
ind_y = i*(*nuc);
for(j=0;j<(*nuc);j++) {
y[ind_y+j]=s[ind_y+j]*c[j];
}
}
return;
}
void decoddi_c(int *nuc,int *nus,int *c,double *s,double *y)
{
/*Déclaration des variables compteur*/
int i,j;
int ind_y;
/*Réalise multiplication code[j] par symbole[i]*/
for (i=0;i<(*nus);i++) {
ind_y = i*(*nuc);
for(j=0;j<(*nuc);j++) {
y[ind_y+j]=s[ind_y+j]*c[j];
}
}
return;
}
void decodi_c(int *nuc,int *nus,int *c,int *s,int *y)
{
/*Déclaration des variables compteur*/
int i,j;
int ind_y;
/*Réalise multiplication code[j] par symbole[i]*/
for (i=0;i<(*nus);i++) {
ind_y = i*(*nuc);
for(j=0;j<(*nuc);j++) {
y[ind_y+j]=s[ind_y+j]*c[j];
}
}
return;
}
void decodid_c(int *nuc,int *nus,double *c,int *s,int *y)
{
/*Déclaration des variables compteur*/
int i,j;
int ind_y;
/*Réalise multiplication code[j] par symbole[i]*/
for (i=0;i<(*nus);i++) {
ind_y = i*(*nuc);
for(j=0;j<(*nuc);j++) {
y[ind_y+j]=s[ind_y+j]*c[j];
}
}
return;
}
IRCOM Group Alan Layec