radio95/fm95
0
1
Fork 0
mirror of https://github.com/radio95-rnt/fm95.git synced 2026-02-27 03:23:54 +01:00
Code Issues Activity

try to measure mpx power

Browse Source
This commit is contained in:
KubaPro010
2025-03-29 19:01:19 +01:00
parent d2393dc2e7
commit 3a1904511f
4 changed files with 47 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
lib/bs412.c Normal file
View File

@@ -0,0 +1,23 @@
#include "bs412.h"
void init_modulation_power_measure(MPXPowerMeasurement* mpx, int sample_rate) {
mpx->i = 0;
mpx->sample = 0;
mpx->sample_rate = sample_rate;
}
float measure_mpx(MPXPowerMeasurement* mpx, int deviation) {
mpx->sample += 20*log10f(deviation/19);
mpx->i++;
if (mpx->i >= mpx->sample_rate) {
float modulation_power = mpx->sample/mpx->i;
mpx->sample = 0.0f;
mpx->i = 0;
return modulation_power;
} else {
return mpx->sample/mpx->i;
}
}