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#2212 Introduce carrier offset measurement processor to monitor a 12.5 kHz channel and provide estimated carrier offset measurements that allow the tuner's frequency error monitor to correct for the average error reported from each channel. Uses a 15 dB threshold where the signal must be at least 15 dB above the noise floor before it will calculate and broadcast the estimate. Stores the updated PPM in the tuner configuration after each update to ensure the value persists across sessions. When selected in the tuner panel, updates the displayed PPM value after each PPM autocorrection. (#2218)

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Co-authored-by: Dennis Sheirer <dsheirer@github.com>
This commit is contained in:
Denny Sheirer
2025-04-20 06:55:43 -04:00
committed by GitHub
parent afadb227db
commit 2dcd994eb2
26 changed files with 816 additions and 275 deletions
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14
src/main/java/io/github/dsheirer/source/SourceEvent.java
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@@ -1,6 +1,6 @@
/*
* *****************************************************************************
* Copyright (C) 2014-2023 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
@@ -41,7 +41,7 @@ public class SourceEvent
NOTIFICATION_FREQUENCY_ROTATION_FAILURE,
NOTIFICATION_MEASURED_FREQUENCY_ERROR,
NOTIFICATION_MEASURED_FREQUENCY_ERROR_SYNC_LOCKED,
NOTIFICATION_PLL_FREQUENCY,
NOTIFICATION_CARRIER_OFFSET_FREQUENCY,
NOTIFICATION_RECORDING_FILE_LOADED,
NOTIFICATION_SAMPLE_RATE_CHANGE,
NOTIFICATION_SQUELCH_THRESHOLD,
@@ -245,13 +245,13 @@ public class SourceEvent
}
/**
* Creates a new PLL frequency error measurement notification event.
* Creates a new carrier offset measurement notification event.
*
* @param frequencyError in hertz
* @param carrierOffset in hertz
*/
public static SourceEvent pllFrequencyMeasurement(long frequencyError)
public static SourceEvent carrierOffsetMeasurement(long carrierOffset)
{
return new SourceEvent(Event.NOTIFICATION_PLL_FREQUENCY, frequencyError);
return new SourceEvent(Event.NOTIFICATION_CARRIER_OFFSET_FREQUENCY, carrierOffset);
}
/**
@@ -318,7 +318,7 @@ public class SourceEvent
/**
* Creates a new channel count change event
*
* @param channelCount
* @param channelCount of channels
*/
public static SourceEvent channelCountChange(int channelCount)
{