furrtek
b813b32593
Added an audio FFT view in Wideband FM receive
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Tried speeding up fill_rectangle for clearing the waveform widget
2018-05-21 18:46:48 +01:00
Jared Boone
b69a3abcb5
Spectrum: Templatize various window functions.
2016-10-03 12:31:40 -07:00
Jared Boone
ef86848139
Change baseband floats to normalize at +/-1.0.
2016-02-14 12:38:50 -08:00
Jared Boone
731cea1b96
Move event.* code into event_m[04].*.
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Slightly more duplication of code now. Need a base class...
2016-01-12 22:00:42 -08:00
Jared Boone
b993e3d73e
Consolidate spectrum collector message handling.
2016-01-12 10:32:00 -08:00
Jared Boone
136ba895ef
Clear spectrum FIFO when streaming is stopped.
2016-01-10 11:00:09 -08:00
Jared Boone
62e5ec1dbb
Postpone clearing channel_spectrum_request_update until finished with data in array.
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There was potential for new samples to be copied into array as the FFT and post-processing were occuring.
2016-01-10 10:45:22 -08:00
Jared Boone
d821afc60d
Spectrum streaming control, spectrum attributes back in each frame.
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TODO: This feels kinda complex, and there's some repeated Processor code that needs to be refactored into a base class.
2016-01-10 10:42:20 -08:00
Jared Boone
7710b2d1fa
ChannelSpectrumConfig message subsumes FIFONotify.
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Separate channel spectrum config from spectrum data. This will permit sending config info only when necessary.
Use type information of ChannelSpectrum to statically define number of FFT bins elsewhere.
TODO: Posting configuration message way too often. Fixing that is the next step.
2016-01-06 12:10:30 -08:00
Jared Boone
aaa1bc3a09
Transmit ChannelSpectrum data through separate FIFO.
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Allows handling of data during LCD "vertical retrace", independent of other baseband->application messages. A bit kludgy still...
2016-01-06 11:34:41 -08:00
Jared Boone
bbfcca8ec0
Rebake of AM, NFM demodulators -- more flexible filtering/configuration.
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Also make SpectrumCollector dynamically configurable.
Add deemphasis filter to NFM.
2015-12-29 11:02:07 -08:00
Jared Boone
bddd26d557
Perform frequency-domain windowing of spectrum.
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Reduces sidelobes a bit, improves apparent resolution. Avoids windowing (more RAM and CPU) in baseband.
2015-12-20 13:31:00 -08:00
Jared Boone
c825a027b2
Comments regarding threading concerns, future refactoring.
2015-12-11 17:29:58 -08:00
Jared Boone
d1637db2fc
Reorder methods in source file to indicate call order.
2015-12-11 17:17:12 -08:00
Jared Boone
088f60f2bc
Extract spectrum collector from BasebandProcessor.
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Code size improvement, and less confused classes. :-)
2015-12-11 12:26:45 -08:00
