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dennis.sheirer
2014-10-31 17:07:32 +00:00
parent 5e7c8a8a57
commit 86f374bb88
2 changed files with 106 additions and 7 deletions
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56
src/dsp/agc/ComplexAutomaticGainControl.java
View File

@@ -8,9 +8,59 @@ import sample.complex.ComplexSample;
import buffer.ComplexCircularBuffer;
import buffer.DoubleCircularBuffer;
/**
* Automatic Gain Control (AGC) for complex samples at 48000 sample rate.
*/
/*******************************************************************************
* SDR Trunk
* Copyright (C) 2014 Dennis Sheirer
* Copyright (C) 2011 Alex Csete
* Copyright (C) 2010 Moe Wheatley
*
* 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/>
*
* ---------------------------------------------------
* Ported from Alex Csete's gqrx source code at:
* https://github.com/csete/gqrx/blob/74ba2742c89b0dfb66854fc9f72d19e5c6e355b6/dsp/agc_impl.cpp
*
* This Software is released under the "Simplified BSD License" + + +
* Copyright 2010 Moe Wheatley. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY Moe Wheatley ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL Moe Wheatley OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are
* those of the authors and should not be interpreted as representing
* official policies, either expressed or implied, of Moe Wheatley.
******************************************************************************/
public class ComplexAutomaticGainControl implements Listener<ComplexSample>,
Provider<ComplexSample>
{

57
src/dsp/agc/RealAutomaticGainControl.java
View File

@@ -2,15 +2,64 @@ package dsp.agc;
import java.util.concurrent.atomic.AtomicBoolean;
import sample.complex.ComplexSample;
import sample.real.RealSampleListener;
import sample.real.RealSampleProvider;
import buffer.DoubleCircularBuffer;
import buffer.FloatCircularBuffer;
/**
* Automatic Gain Control (AGC) for complex samples at 48000 sample rate.
*/
/*******************************************************************************
* SDR Trunk
* Copyright (C) 2014 Dennis Sheirer
* Copyright (C) 2011 Alex Csete
* Copyright (C) 2010 Moe Wheatley
*
* 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/>
*
* ---------------------------------------------------
* Ported from Alex Csete's gqrx source code at:
* https://github.com/csete/gqrx/blob/74ba2742c89b0dfb66854fc9f72d19e5c6e355b6/dsp/agc_impl.cpp
*
* This Software is released under the "Simplified BSD License" + + +
* Copyright 2010 Moe Wheatley. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY Moe Wheatley ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL Moe Wheatley OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are
* those of the authors and should not be interpreted as representing
* official policies, either expressed or implied, of Moe Wheatley.
******************************************************************************/
public class RealAutomaticGainControl implements RealSampleListener,
RealSampleProvider
{