mirror of
https://github.com/DSheirer/sdrtrunk.git
synced 2026-11-12 08:37:25 -05:00
0c47efea03
and auto-correction for R820T tuners. -Updated TunerModel and TunerViewPanel to add 2 new columns to display the current tuner's PPM setting and (when available) the measured frequency error averaged over 5 second intervals provided by certain decoders (e.g. P25 C4FM and LSM). Frequency error value from P25 decoders is provided from the Costas Loop PLL once 2 or more P25 message sync events have been observed in a short period. -Updated R820T tuner to auto-correct PPM when measured frequency error exceeds the +/- 0.4PPM threshold for a period of 30 seconds or more. Feature can be enabled/disabled by user in the tuner editor panel. Resolved several issues with P25 C4FM/LSM decoders that was impacting performance related to channel misalignment from tuner PPM offsets.
58 lines
1.6 KiB
Java
58 lines
1.6 KiB
Java
/*******************************************************************************
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* sdr-trunk
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* Copyright (C) 2014-2018 Dennis Sheirer
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*
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* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with this program.
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* If not, see <http://www.gnu.org/licenses/>
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*
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******************************************************************************/
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package io.github.dsheirer.bits;
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import io.github.dsheirer.dsp.symbol.ISyncDetectListener;
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public class SyncDetector implements ISyncProcessor
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{
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private long mPattern;
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private ISyncDetectListener mListener;
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public SyncDetector(long pattern)
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{
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mPattern = pattern;
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}
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public SyncDetector(long pattern, ISyncDetectListener listener)
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{
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this(pattern);
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mListener = listener;
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}
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public void setListener(ISyncDetectListener listener)
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{
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mListener = listener;
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}
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@Override
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public boolean checkSync(long value)
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{
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if(value == mPattern)
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{
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if(mListener != null)
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{
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mListener.syncDetected();
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}
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return true;
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}
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return false;
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}
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}
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