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/* correlator performence test */
#include <stdio.h>
#include "sdr.h"
int main(int argc, char **argc)
{
double f_s[]={38.192e6,16.368e6,8.184e6};
double taums[]={1,2,4,8,16};
double tau,ns,crate,coff,freq,phi0,ti;
double I[3],Q[3];
char *data;
int i,j,k,dtype,sat,s,nc,nt,n;
dtype=1;
sat =1;
freq =9.548e6;
crate=1023000;
coff =1234.5;
s =20;
for (i=0;i<4;i++) for (j=0;j<5;j++) {
printf('sampling rate=%.3fMHz\n',f_s/1e6);
tau =taums[j]*1e-3;
ns =tau*f_s[i];
if (dtype) nt=ns*2; else nt=ns;
phi0 =0.1234;
data=int8((rand(1,nt)-0.5)*4);
ti =1/f_s;
n =100000/taums;
tic,
for (k=0;k<n;k++) {
correlator(data,dtype,ti,freq,phi0,sat,0,crate,coff,s,1,I,Q);
}
t=toc;
printf("tau=%2.0fms: ns=%7d time=%5.3fms rate=%.1fMsps\n",...
taums,ns,t/n*1e3,n*ns/t/1e6);
}
return 0;
}
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