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#1067 P25 Phase 1 C4FM/LSM decoder redesign. (#2294)

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C4FM now uses SIMD differential decoding and soft sync detection.
LSM updated with soft sync detector and retains original Gardner error detector.
Adds new QPSK symbol view in the now playing channel tab.
Restores PLL error driven tuner Auto-PPM feature.
Deletes the demod viewer GUI application and all instrumented decoders
Updates DMR to send soft symbols to new symbol view in Now Playing.

Co-authored-by: Dennis Sheirer <dsheirer@github.com>
This commit is contained in:
Denny Sheirer
2025-11-16 06:52:17 -05:00
committed by GitHub
parent 48202da9e4
commit 0d886c272e
149 changed files with 5990 additions and 8984 deletions
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15
src/main/java/io/github/dsheirer/source/tuner/TunerFrequencyErrorMonitor.java
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@@ -1,6 +1,6 @@
/*
* *****************************************************************************
* Copyright (C) 2014-2022 Dennis Sheirer
* Copyright (C) 2014-2025 Dennis Sheirer
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -21,14 +21,13 @@ package io.github.dsheirer.source.tuner;
import io.github.dsheirer.sample.Listener;
import io.github.dsheirer.source.SourceEvent;
import io.github.dsheirer.util.ThreadPool;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.LinkedTransferQueue;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Monitors frequency error measurements received from certain decoders (e.g. P25) and averages those
@@ -85,13 +84,9 @@ public class TunerFrequencyErrorMonitor implements Listener<SourceEvent>
//Note: the measurements are the frequency correction being applied to each channel to compensate
//for the error int the channel. So, we report the negated value as the current error measurement
broadcast(-(sum / mProcessingMeasurements.size()));
}
else
{
broadcast(0);
}
mProcessingMeasurements.clear();
mProcessingMeasurements.clear();
}
}
private void broadcast(int averageError)

3
src/main/java/io/github/dsheirer/source/tuner/manager/ChannelSourceManager.java
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@@ -1,6 +1,6 @@
/*
* *****************************************************************************
* Copyright (C) 2014-2024 Dennis Sheirer
* Copyright (C) 2014-2025 Dennis Sheirer
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -95,6 +95,7 @@ public abstract class ChannelSourceManager implements ISourceEventProcessor
*/
public void addSourceEventListener(Listener<SourceEvent> listener)
{
System.out.println("ChannelSourceManager regisering: " + listener.getClass());
mSourceEventBroadcaster.addListener(listener);
}