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330 WIP - P25 C4FM decoder fully functional using DQPSK decoder and

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new symbol timing error detector.  Each component now has a subclass
that supports instrumentation for use with the DemodulatorViewerFX
application.
This commit is contained in:
Denny
2018-02-25 08:56:34 -05:00
parent a0630102e6
commit 148ddd0bd5
23 changed files with 623 additions and 1302 deletions
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48
src/main/java/io/github/dsheirer/dsp/psk/InterpolatingSampleBufferInstrumented.java Normal file
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/*******************************************************************************
* sdr-trunk
* Copyright (C) 2014-2018 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 the Free Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with this program.
* If not, see <http://www.gnu.org/licenses/>
*
******************************************************************************/
package io.github.dsheirer.dsp.psk;
import io.github.dsheirer.sample.complex.Complex;
public class InterpolatingSampleBufferInstrumented extends InterpolatingSampleBuffer
{
private SymbolDecisionData mSymbolDecisionData;
public InterpolatingSampleBufferInstrumented(float samplesPerSymbol)
{
super(samplesPerSymbol);
mSymbolDecisionData = new SymbolDecisionData((int)samplesPerSymbol);
}
public void receive(Complex sample)
{
super.receive(sample);
mSymbolDecisionData.receive(sample);
}
/**
* Contents of the interpolating buffer and the current buffer index and symbol decision offset. This data can
* be used to support an external eye-diagram chart.
* @return symbol decision data.
*/
public SymbolDecisionData getSymbolDecisionData()
{
mSymbolDecisionData.setSamplingPoint(getSamplingPoint());
return mSymbolDecisionData;
}
}