[feat](trx-rds,trx-backend-soapysdr): improve weak-signal rds recovery

Co-authored-by: Codex <codex@openai.com> Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 12:19:36 +01:00
parent 0329be6124
commit 2ed68e4210
2 changed files with 118 additions and 23 deletions
@@ -104,7 +104,6 @@ impl WfmStereoDecoder {
        if composite.is_empty() {
            return Vec::new();
        }
-        let _ = self.rds_decoder.process_samples(&composite);

        let mut output = Vec::with_capacity(
            ((composite.len() as f64 * self.output_phase_inc).ceil() as usize + 1)
@@ -122,6 +121,8 @@ impl WfmStereoDecoder {

            let pilot_mag = (i * i + q * q).sqrt();
            let stereo_blend = (pilot_mag * 40.0).clamp(0.0, 1.0);
+            let rds_quality = (pilot_mag * 45.0).clamp(0.0, 1.0);
+            let _ = self.rds_decoder.process_sample(x, rds_quality);

            let sum = self.sum_lp.process(x);
            let stereo_carrier = (2.0 * self.pilot_phase).cos() * 2.0;