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

hackrf_sweep: removed bin width from binary output because a more precise result can be computed from the number of bins in a record

Browse Source
This commit is contained in:
Michael Ossmann
2017-02-10 16:37:52 -07:00
parent 55e3a2087d
commit c57066ebf8
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
host/hackrf-tools/src/hackrf_sweep.c
View File

@ -246,7 +246,7 @@ int rx_callback(hackrf_transfer* transfer) {
pwr[i] = logPower(fftwOut[i], 1.0f / fftSize);
}
if(binary_output) {
record_length = 2 * sizeof(band_edge) + sizeof(fft_bin_width)
record_length = 2 * sizeof(band_edge)
+ (fftSize/4) * sizeof(float);
fwrite(&record_length, sizeof(record_length), 1, stdout);
@ -254,7 +254,6 @@ int rx_callback(hackrf_transfer* transfer) {
fwrite(&band_edge, sizeof(band_edge), 1, stdout);
band_edge = frequency + DEFAULT_SAMPLE_RATE_HZ / 4;
fwrite(&band_edge, sizeof(band_edge), 1, stdout);
fwrite(&fft_bin_width, sizeof(fft_bin_width), 1, stdout);
fwrite(&pwr[1+(fftSize*5)/8], sizeof(float), fftSize/4, stdout);
fwrite(&record_length, sizeof(record_length), 1, stdout);
@ -262,7 +261,6 @@ int rx_callback(hackrf_transfer* transfer) {
fwrite(&band_edge, sizeof(band_edge), 1, stdout);
band_edge = frequency + (DEFAULT_SAMPLE_RATE_HZ * 3) / 4;
fwrite(&band_edge, sizeof(band_edge), 1, stdout);
fwrite(&fft_bin_width, sizeof(fft_bin_width), 1, stdout);
fwrite(&pwr[1+fftSize/8], sizeof(float), fftSize/4, stdout);
} else {
time_now = time(NULL);