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[fix](trx-backend-soapysdr): use peak IQ magnitude for signal strength display

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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
This commit is contained in:
Stan Grams
2026-03-27 14:48:03 +01:00
parent 4fc32f0e90
commit 7ffd1ccd6a
1 changed files with 7 additions and 6 deletions
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src/trx-server/trx-backend/trx-backend-soapysdr/src/dsp/channel.rs
+7 -6
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@@ -740,13 +740,14 @@ impl ChannelDsp {
}
}
let signal_power = decimated
.iter()
.map(|s| s.re * s.re + s.im * s.im)
.sum::<f32>()
/ decimated.len() as f32;
let (signal_power_mean, signal_power_peak) =
decimated.iter().fold((0.0_f32, 0.0_f32), |(sum, peak), s| {
let p = s.re * s.re + s.im * s.im;
(sum + p, peak.max(p))
});
let signal_power = signal_power_mean / decimated.len() as f32;
let signal_db = 10.0 * signal_power.max(1e-12).log10();
self.last_signal_db = signal_db;
self.last_signal_db = 10.0 * signal_power_peak.max(1e-12).log10();
const WFM_OUTPUT_GAIN: f32 = 0.50;
let mut audio = if let Some(decoder) = self.wfm_decoder.as_mut() {
let mut out = decoder.process_iq(decimated);