dennis.sheirer
d7a03c7196
P25 - work in progress - this is a fairly stable version of the P25 channel state. There is still work to do, but I'm going to release a test version based on this commit.
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- Channel state now processes HDU, TDU, TDULC, PDU, PDULC, LDU1/2, LDULC
2015-02-22 18:46:03 +00:00
dennis.sheirer
a0b38afee1
P25 - adds support from motorola patch groups described by PiccoIntegra in RR post: http://forums.radioreference.com/trunking-control-channel-decoding/308138-question-about-t-g-patching-p25.html
2015-02-20 12:58:41 +00:00
dennis.sheirer
ebee420478
P25 cleanup.
2015-02-20 01:52:04 +00:00
dennis.sheirer
7d948c4af4
P25 LSM work in progress. CQPSK demodulator is working now, but there is a slight phase error in the constellation (it's rotated right by 5-10 degrees). I'm not sure if this is an error coming from the decoder, or if it's reflecting a phase imbalance from the source tuner i/q data.
2015-02-16 23:14:23 +00:00
dennis.sheirer
78163caf4f
Updated aliases to better support wildcards and regular expressions
2015-02-14 21:56:32 +00:00
dennis.sheirer
d83e6379a3
Alias actions. Adds capability to alert when an alias is active in one of the decoded messages. Alias actions include: beep, play an audio clip, or run a script. Additional actions can easily be added.
2015-02-14 19:24:25 +00:00
dennis.sheirer
a65e821e85
P25 LSM decoder work in progress. Adds a CQPSK decoder based on Max's (KA1RBI) scope.py and gardner loop.
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The CQPSK decoder is starting to take shape, but needs more tweaking and testing. It's not keeping a good lock on strong P25 signals. I have to add some more features to the intrumentation package to allow me to visualize the internals of the CQPSK decoder so that I can get a better sense of what needs fine tuning.
The CQPSK decoder may work for anyone that wants to sync the repo and run the build script.
2015-02-10 00:42:08 +00:00
dennis.sheirer
9310fb0daf
Global rename of BitSetBuffer to BinaryMessage.
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Corrected issue in P25 NID error correction.
2015-01-24 13:37:42 +00:00
dennis.sheirer
871705ece8
P25 - adds SNDCP context management and data packet parsing for IPV4 and UDP/IP packets to include IP addresses and data payload bytes.
2015-01-23 21:06:02 +00:00
dennis.sheirer
e5fad7ee22
P25 - Automatic Gain Control for P25 decoder
2015-01-19 19:25:43 +00:00
dennis.sheirer
1c0da75c01
P25 - adds direct frequency control for the C4FM symbol filter to adjust the tuner channel for frequency correction.
2015-01-19 16:20:37 +00:00
dennis.sheirer
cc5edd4790
P25 - added parsing of packet payload data for confirmed PDUs.
2015-01-19 13:17:11 +00:00
dennis.sheirer
51d6b328bd
P25 - adds CRC-9 error detection to confirmed PDU message blocks
2015-01-18 12:43:10 +00:00
dennis.sheirer
35855b08bb
P25 - adds 3/4 rate convolutional decoder for confirmed packet data units.
2015-01-17 18:24:39 +00:00
dennis.sheirer
a9ac26b4f8
Added speed parsing to GPS message. Updated message b to become the ANI message.
2015-01-11 19:03:51 +00:00
dennis.sheirer
910dbce501
Resolved issue with Tait Message class parsing of fractional latitude and longitude values
2015-01-11 12:17:17 +00:00
dennis.sheirer
71c247a7c3
Updates to Tait decoder - adds GPS message parsing and SELCAL ident parsing
2015-01-10 20:27:01 +00:00
dennis.sheirer
c579f1617d
P25 work in progress
2015-01-07 02:15:51 +00:00
dennis.sheirer
f99ab161ff
Adds support for experimental Tait-1200 FFSK auxiliary decoder
2015-01-07 02:15:06 +00:00
dennis.sheirer
07d3b92dae
Adds Transponder activation reply code to LJ1200 message parsing.
2015-01-07 00:32:25 +00:00
dennis.sheirer
84261a4be9
Changed NID error detection and correction (edac) to using Berlekemp Massey 63-bit block decoder for the BCH(63,16,11) code so that we can correct up to 11 bit errors in a NID (versus previous 2).
2015-01-04 15:29:34 +00:00
dennis.sheirer
bb27d5cb42
Adds Low Speed Data parsing to both LDU1 and LDU2
2015-01-03 00:42:04 +00:00
dennis.sheirer
77eeed78d2
P25 work in progress.
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Adds parsing of TDULC and LDU1 Link Control messages and LDU1 Low Speed Data ( 16-bit word).
2015-01-02 23:30:35 +00:00
dennis.sheirer
03460eeb19
P25 work in progress
2015-01-02 14:08:22 +00:00
dennis.sheirer
95ddadc598
Resolved issue with LJ1200 not decoding tower transmissions after addition of transponder decoder.
2014-12-28 01:51:55 +00:00
dennis.sheirer
f6687decef
Adds Galois 24/12/7 error correction and detection for use with P25 decoder.
2014-12-26 19:51:25 +00:00
dennis.sheirer
c28cf19104
Adds new LJ1200 transponder message parsing to the LJ1200 auxiliary decoder.
2014-12-26 14:32:32 +00:00
dennis.sheirer
e8b2d5e8cb
Adding missing map icon
2014-12-24 02:39:19 +00:00
dennis.sheirer
af2d1db0ca
Disabling the P25 decoder which was previously enabled (by mistake)
2014-12-24 02:27:22 +00:00
dennis.sheirer
def9edf3f0
Resolved issue where the logging config file was not on the classpath and not being loaded, resulting in no log files.
2014-12-24 02:17:56 +00:00
dennis.sheirer
ce9a3fccde
Java Garbage Collector - reverting from G1 to parallel GC - memory and CPU utilization was excessive on several user systems.
2014-12-23 22:45:08 +00:00
dennis.sheirer
86cb5b2f4b
P25 work in progress
2014-12-23 22:43:55 +00:00
dennis.sheirer
d15ff407bd
P25 channel state updates.
2014-12-21 23:05:47 +00:00
dennis.sheirer
1d77f28958
P25 work in progress - final check-in of channel state and activity summary processing of TSBK and PDU messages and event generation.
2014-12-21 14:30:06 +00:00
dennis.sheirer
ba053457bd
Out of memory fixes and updates to the P25 decoder.
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Memory Fixes
Decreased the decimation process repeat timing so that it runs smaller work chunks more often
Decreased scheduled thread pool to 2 hot threads
Wrapped all scheduled thread pool runnables in try/catch blocks so that an exception doesn't kill the sample buffer processing thread and cause the buffer to grow unbounded.
P25 updates
Moved TSBK crc checks into the message framer so that message corrections don't occur after the message is constructed.
Added more functionality to the channel state for handling registrations and call events.
2014-12-19 23:59:38 +00:00
dennis.sheirer
63eaef664b
Added CRC checks to 2,3 and 4 block PDU messages. Enforcing message validation via the message processor. Updated the P25 Activity Summary to show frequencies in megahertz and to add site aliasing to the summary text.
2014-12-17 02:10:43 +00:00
dennis.sheirer
e7b446b3b5
Updated LJ1200 decoder to only pass valid messages.
2014-12-15 23:57:08 +00:00
dennis.sheirer
2635b58dfc
Resolved issue in CRC-CCITT correction method. Added CRC error detection to PDU header block in the message framer, so that we're sure that the number of follow blocks is correct while we're capturing symbols/bits. Set the TDU message error correction to Pass since the CRC is calculated within the message framer and no errant NIDs (TDU) are passed.
2014-12-15 02:01:15 +00:00
dennis.sheirer
9542a74968
Resolved issue with a filter element comparator that was causing the build to fail.
2014-12-14 23:14:49 +00:00
dennis.sheirer
8b5e9c3f36
Updates the LJ-1200 message with updated function code break outs and site id parsing with site aliasing.
2014-12-14 23:09:14 +00:00
dennis.sheirer
d6306a5e85
P25 work in progress - adds CRC-CCITT error checking to TSBK messages and shows CRC correction state in the messages tab
2014-12-14 22:54:37 +00:00
dennis.sheirer
170688b95e
P25 Work in progress. Adds CRC checking to NID/DUID. Adds limiter to trellis decoder to prevent it from decoding an excessive error message. Updates channel state with initial handling/generation of call events.
2014-12-14 02:34:19 +00:00
dennis.sheirer
0d8da161e1
Adds message filtering, message history clear, and message history size features to the 'Messages' tab. Filter window dynamically constructs a list of filters from the primary filter and each of the auxiliary filters enabled within the currently selected/enabled processing channel.
2014-12-12 04:30:31 +00:00
dennis.sheirer
33d18b1186
Icon change cleanup
2014-12-06 20:33:41 +00:00
dennis.sheirer
0b535d8143
Decoder icon updates. Changed from colorized icons to a standard set of decoder icons and will now color the text of the channel node to reflect the status (green - processing, red - no tuner, no color - disabled )
2014-12-06 20:20:50 +00:00
dennis.sheirer
fb630916a9
P25 work in progress
2014-12-06 20:19:34 +00:00
dennis.sheirer
f03d27c093
Resolves issue #8 . Switched to using the G1 garbage-first garbage collector using the default configuration. There is a marked improvement in heap space management on Windows systems and an overall consistent GC pattern on both Linux and Windows.
2014-12-05 16:05:52 +00:00
dennis.sheirer
974487b740
LJ CRC class code cleanup
2014-12-05 13:11:33 +00:00
dennis.sheirer
412f1ac9f7
Adds CRC checksum validation to LJ1200 messages (using Eric Cottrell's CRC polynomial)
2014-12-05 12:59:16 +00:00
dennis.sheirer
11c52cbe19
Resolves an issue in the MPT1327 decoder introduced by changing site alias values from integer to string (to support P25 site identifiers).
2014-12-05 12:57:55 +00:00
