Exemple #1
0
static inline int demodulador(fsk_data *fskd, float *retval, float x)
{
	float xS,xM;

	fskd->cola_in[fskd->pcola]=x;
	
	xS=filtroS(fskd,x);
	xM=filtroM(fskd,x);

	fskd->cola_filtro[fskd->pcola]=xM-xS;

	x=filtroL(fskd,xM*xM - xS*xS);
	
	fskd->cola_demod[fskd->pcola++]=x;
	fskd->pcola &= (NCOLA-1);

	*retval = x;
	return(0);
}
Exemple #2
0
int demodulador(ZAP *zap, float *retval)
{
	float x,xS,xM;

	if (get_audio_sample(zap,&x)) return(-1);
	zap->fskd.cola_in[zap->fskd.pcola]=x;
	
	xS=filtroS(zap,x);
	xM=filtroM(zap,x);

	zap->fskd.cola_filtro[zap->fskd.pcola]=xM-xS;

	x=filtroL(zap,xM*xM - xS*xS);
	
	zap->fskd.cola_demod[zap->fskd.pcola++]=x;
	zap->fskd.pcola &= (NCOLA-1);

	*retval = x;
	return(0);
}