Sojus07/hackrf
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Rearrange fftw output

Browse Source
This commit is contained in:
Mike Walters
2016-07-29 03:21:56 +01:00
parent 27b8f674da
commit 1bd4c9a846
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
host/hackrf-tools/src/hackrf_sweep.c
View File

@ -184,8 +184,11 @@ int rx_callback(hackrf_transfer* transfer) {
buf_short = buf_short + 8190; buf_short = buf_short + 8190;
fftwf_execute(fftwPlan); fftwf_execute(fftwPlan);
for (i=0; i < fftSize; i++) { for (i=0; i < fftSize; i++) {
pwr[i] = logPower(fftwOut[i], 1.0f / fftSize); // Start from the middle of the FFTW array and wrap
fprintf(stderr, "%f\n", pwr[i]); // to rearrange the data
int k = i ^ (fftSize >> 1);
pwr[i] = logPower(fftwOut[k], 1.0f / fftSize);
fprintf(stderr, "%f\n", pwr[i]);
} }
fprintf(stderr, "\n"); fprintf(stderr, "\n");
} }