| 189,7 → 189,7 |
|---|
| unsigned int maxval = (1 << (snd_pcm_format_width(format) - 1)) - 1; |
| |
| static const float f0 = 1000; |
| static const float fmax = 10000; |
| static const float fmax = 7000; |
| static const float Tw = 0.002; |
| static float k; |
| |
| 413,11 → 413,13 |
|---|
| j+=2; |
| } |
| |
| // linear_windowed_chirp(L_signal,1000000, 1000); |
| |
| printf("\nData transmitted... \ncorrelating...\n"); |
| for(n=0; n < (SIGNAL_SAMPLES - chirp_size);n++){ |
| l=0; |
| r=0; |
| for(m=CHIRP_OFFSET;m < 500;m++) |
| for(m=CHIRP_OFFSET;m < chirp_size;m++) |
| { |
| l += chirp[m]*L_signal[m+n]; // correlate with left channel |
| r += chirp[m]*R_signal[m+n]; // correlate with right channel |
| 426,7 → 428,7 |
|---|
| correlationr[n]=r; |
| } |
| |
| /* printf("\nSearching echos...\n"); |
| printf("\nSearching echos...\n"); |
| r=0; |
| l=0; |
| for(n=0; n < (SIGNAL_SAMPLES - chirp_size);n++){ //najde nejvetsi korelace |
| 438,11 → 440,11 |
|---|
| delay[2] = n; |
| r = correlationr[n]; |
| } |
| }*/ |
| } |
| |
| out=fopen("./output.txt","w"); |
| j=0; |
| for(i=0;i<=60000;i++){ |
| for(i=0;i<=100000;i++){ |
| fprintf(out,"%6d %6d %6d %6d %9ld %9ld\n",i,chirp[i],L_signal[i],R_signal[i],correlationl[i], correlationr[i]); |
| j+=2; |
| } |