Commit Graph

17 Commits

Author SHA1 Message Date
Denny
99d81d247a Merge branch 'master' into 39-polyphase-channelizer
# Conflicts:
#	src/channel/state/ChannelState.java
#	src/module/ProcessingChain.java
#	src/source/Source.java
#	src/source/mixer/RealMixerSource.java
#	src/source/tuner/TunerChannelSource.java
#	src/source/wave/RealWaveSource.java
2017-10-15 07:17:57 -04:00
Denny
be62ae0459 Resolves #249 - removes the state monitor runnable from the channel
state and replaces it with a processing chain heartbeat that is generated
by the sample source.

Previously, the state monitor was running on a separate thread and this
was causing multi-threading issues.  With this update, all channel state
operations (and all module operations) occur on the source's buffer
processing thread.
2017-07-22 05:42:13 -04:00
Denny
7c6b7494b8 wip-channelizer 2017-04-21 12:17:55 -04:00
Denny
1aa85a86ca Resolves issue with channel frequency correction events not being broadcast within the processing chain and rendering in the spectral display. 2017-03-11 10:16:08 -05:00
denny
f7f6c2fc3e Merges changes from master branch to resolve issue with CPU and memory
and constraints on scheduled thread pool saturation.  Adds a new
scheduled thread pool for each processing chain that the components in
the chain can share, versus the single shared pool exposed by the
threadpoolmanager class.
2016-02-15 15:47:14 -05:00
denny
4be63d4b95 Work in progress.
-Started work on new channel editor channel viewer/controller
-Removed a number of unused buffer package classes
-Moved automatic frequency control to be a module and removed special
handling
-Added IUnfilteredRealBufferListener & Provider interfaces
-Completely removed the ResourceManager class
2016-02-13 14:57:12 -05:00
denny
6763a4bdd6 Adds de-emphasis filter to P25 decoded IMBE audio output. 2015-12-11 13:34:20 -05:00
denny
416cbdd105 work in progress 2015-09-14 21:48:30 -04:00
denny
c7227ca780 Work in progress 2015-09-14 21:31:26 -04:00
denny
f4d8ea281d Initial commit of redesigned internal processing and audio management.
Note: Several of the decoders are currently non-functioning in this
commit.  If you want the latest functioning codebase, please checkout
the commit prior to this one.  All decoders will eventually be updated
with this new architecture.

Currently broken:
- Logging and recording
- Aux decoders (Fleetsync/MDC/LoJack/Tait)
- LTR/Passport decoders

Changes in this commit:
- Module architecture for decoders and components with central
provisioning by the DecoderFactory
- Transition from Complex sample stream processing to float buffer
processing for improved memory management
- Redesigned filter structures - to support buffers and streams
- Resolved several memory leak issues
- Universal sharing of the thread pool manager
- Added centralized audio management with call/user prioritization and
new gui with mute/volume controls
- Embedded audio metadata for eventual streaming support
- Redesigned ProcessingChain to support independent re-use
- Added new TrafficChannelManager to handle traffic channel allocations
- Traffic Channel pool size and Call timeout available in P25 and
MPT1327 configs
- Redesigned channel and decoder gui components
2015-09-01 07:10:26 -04:00
dennis.sheirer
a65e821e85 P25 LSM decoder work in progress. Adds a CQPSK decoder based on Max's (KA1RBI) scope.py and gardner loop.
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
cc5edd4790 P25 - added parsing of packet payload data for confirmed PDUs. 2015-01-19 13:17:11 +00:00
dennis.sheirer
ae0568ff3b Updated spectral display to used dBm scale and removed baseline/amplification items.
Updated sample handling code to use -1.0 to 1.0 float values throughout, to support P25 decoder and symbol filter.
2014-11-01 17:39:06 +00:00
dennis.sheirer
d34abdd2fa Refactoring to use COMPLEX and REAL sample terms throughout 2014-10-31 13:58:20 +00:00
dennis.sheirer
e61c3a891c Memory/CPU performance improvement and Audio/Mixer source restructuring
Converted to use float primitives and to keep samples in buffer format until the sample rate is decimated to 48kHz.  
Added new non-recursive, CIC decimation filter -- untested

Updated sound card/mixer input source management.  Now testing for mono/stereo support for each card and limiting channel choices accordingly.  Separated the mixersource into a ComplexMixer and and SimplexMixerSource.  The ComplexMixer is used for sound card based tuners like the funcube.  The SimplexMixerSource is used for demodulated sound card inputs.

Interfaces for sample handling - standardized on using 'Complex' to indicate I/Q samples and 'Simplex' to indicate demodulated float samples.  The processing chain now accepts either a decimated (48k) list of complex samples from a tuner channel source, or a 48k simplex buffer (array of demodulated float samples).

Resolved issue with HackRF tuner not applying tuner configuration information.
2014-10-26 10:11:30 +00:00
dennis.sheirer
35a2cebe03 Converted frequency to long primitive type (from integer) in anticipation of HackRF support which requires frequencies greater than 2.147 GHz, which is the max hertz value that can be represented by an integer primitive. 2014-07-08 14:40:11 +00:00
dennis.sheirer
3dfedcf8d1 Initial code check in continued 2014-04-26 19:48:24 +00:00