GitHub/sdrtrunk
1
0
Fork 0
mirror of https://github.com/DSheirer/sdrtrunk.git synced 2026-11-12 16:47:31 -05:00
Code Issues Packages Projects Releases 2 Wiki Activity

#35 Updates AM & NBFM decoders to use Adaptive Squelch, a power squelch that includes an adaptive noise floor monitor. Implements vectorized magnitude operations for AM & FM decoders. Adds talkgroup assignment and squelch controls to AM channel configuration editor. Implements new AM gain control that attempts to normalize audio gain quickly at beginning of call/transmission and maintains that gain across lifecycle of the call and resets the gain for the next call. (#1540)

Browse Source 
Notes on usage:
- When using either AM or FM squelch control use either the Heterodyne channelizer or if using the Polyphase channelizer, avoid using trunk tracking decoders like DMR or P25 or set the squelch threshold high enough to avoid changes in noise floor from polyphase channelizer where it can vary between using the one channel or the two-channel combined channel sources.

Co-authored-by: Dennis Sheirer <dsheirer@github.com>
This commit is contained in:
Denny Sheirer
2023-05-07 07:27:44 -04:00
committed by GitHub
parent 5654254cbb
commit 4f8b8e978b
74 changed files with 4630 additions and 2012 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
src/main/java/io/github/dsheirer/protocol/Protocol.java
View File

@@ -1,23 +1,20 @@
/*
* *****************************************************************************
* Copyright (C) 2014-2023 Dennis Sheirer
*
* * ******************************************************************************
* * Copyright (C) 2014-2019 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/>
* * *****************************************************************************
* 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.protocol;
@@ -28,6 +25,7 @@ import java.util.EnumSet;
*/
public enum Protocol
{
AM("AM", "AM", 0),
APCO25("APCO-25", "APCO25PHASE1", 9600),
APCO25_PHASE2("APCO-25 P2", "APCO25PHASE2", 12000),
ARS("ARS", "ARS", 0),
@@ -51,7 +49,6 @@ public enum Protocol
private String mFileNameLabel;
private int mBitRate;
Protocol(String label, String fileNameLabel, int bitRate)
{
mLabel = label;
@@ -59,7 +56,7 @@ public enum Protocol
mBitRate = bitRate;
}
public static EnumSet<Protocol> TALKGROUP_PROTOCOLS = EnumSet.of(APCO25, DMR, FLEETSYNC, LTR, LTR_NET, MDC1200,
public static EnumSet<Protocol> TALKGROUP_PROTOCOLS = EnumSet.of(AM, APCO25, DMR, FLEETSYNC, LTR, LTR_NET, MDC1200,
MPT1327, NBFM, PASSPORT);
public static EnumSet<Protocol> RADIO_ID_PROTOCOLS = EnumSet.of(APCO25, DMR, PASSPORT);