Commit Graph

9 Commits

Author SHA1 Message Date
Denny Sheirer
9ffa02e2e5 #1633 DMR Decoder redesign. Uses new DQPSK vector/scalar demodulator implementations and soft sync detectors for more accurate detections and symbol timing and symbol period calculations. Includes two new calibrations with scalar and vector implementations for DQPSK demodulator and Interpolator. Enhances DMR error detection and correction algorithms, specifically the block product turbo code algorithms. (#2115)
Co-authored-by: Dennis Sheirer <dsheirer@github.com>
2024-12-24 06:53:58 -05:00
Denny Sheirer
5c9c3fa503 #2089 Motorola P25P2 TDMA data channel support (#2090)
Co-authored-by: Dennis Sheirer <dsheirer@github.com>
2024-11-12 02:22:22 -05:00
Denny Sheirer
1b3ce431e6 #2007 P25 Call events tracking. P25 Traffic channel manager now uses event trackers to deconflict between control channel and traffic channel event updates. Protects against Motorola ISSI FQSUID that's all zeros. Resolves issue with running out of traffic channels after losing the control channel and going into CC hunt mode a few times. (#2010)
Co-authored-by: Dennis Sheirer <dsheirer@github.com>
2024-10-13 11:53:12 -04:00
Denny Sheirer
3c8cd0386d #1914 P25 P1 & P2 Talker Alias Support for Motorola and L3Harris. Talker alias manager caches aliases and applies to future events. Active (cached) talker aliases now listed in the channel Details tab. Enables multi-select in message viewer for all supported protocols. Note: decoding of Motorola's talker alias format not yet implemented - only recognition and reassembly of the encoded sequence is currently supported. (#2001)
Co-authored-by: Dennis Sheirer <dsheirer@github.com>
2024-10-05 03:47:18 -04:00
Denny Sheirer
0ecdf4dd2b #1994 P25 Phase1 missing subsequent calls audio when multiple conversations on the same traffic channel. (#1995)
Fixed issue where sdrtrunk was not checking HDU and LDU2 encryption sequences as valid before assessing the encryption state of a call.  Updated P25P1 audio module to check the valid flag for both the HDU and the LDU2 encryption segment before assigning encryption state.  Now caches all LDU messages until encryption state is determined.

Co-authored-by: Dennis Sheirer <dsheirer@github.com>
2024-09-29 07:53:13 -04:00
Denny Sheirer
8bb59d581f #1977 P25 FQSUID handling improvements. P25 fully qualified radio/talkgroup identifiers we're being flagged as invalid when ISSI patch assigned a local address/ID of zero. Changes format of FQSUID and FQTGID to use a value of zero for the local alias when the call type is an ISSI patch and suppress display of the 0 alias value. If the identifier represents a roaming user, then the local address value is displayed with the FQSUID appended in parenthesis. (#1978)
Co-authored-by: Dennis Sheirer <dsheirer@github.com>
2024-09-15 05:37:01 -04:00
Denny Sheirer
7e709d9d6f #1304 P25 Phase 1/2 decoder enhancements. (#1898)
* P25 Phase 2 now supports control channel decoding and decoder was enhanced to improve decodes.
* Radio reference site editor updated for phase 2 sites to allow user to select FDMA or TDMA control.
* Decode events are now minimized and de-duplicated.
* Fully parsing all phase 1/2 messages from the latest ICD.
* Vendor specific messaging recoveries (Moto & Harris).
* Patch group management enhancements with stale patch detection.
* Tuner editor now fully resets the min/max frequency values
* Default traffic channel count increased to 20 (from 3).
* ISSI roaming radio and talkgroup values now displayed and aliasable as fully qualified values (e.g. 1234(123.456.7890)
* Moto emergency alarm activation messaging support
* Expanded list of P25 encryption algorithms
* Message (bits) viewer enhanced for P25 phase 1 and phase 2
* IPV4 addresses and UDP ports no longer classified as user values - won't display in event views.
* New framework for describing message binary fields that should reduce overall memory footprint and enhance code readability

Co-authored-by: Dennis Sheirer <dsheirer@github.com>
2024-04-26 13:55:17 -04:00
Dennis Sheirer
834846d339 #1746 DMR Decoder now supports simplex repeater and DMDC modes of operation. 2023-12-01 02:58:27 -05:00
Dennis Sheirer
a7470b463f #1668 Updates message recording (.bits) viewer to support P25 Phase 1. 2023-10-15 07:14:53 -04:00