Andreas Eversberg
2d0bc92cde
C-Netz: Make demodulation buffer size dynamic
2017-01-07 06:26:50 +01:00
Andreas Eversberg
27c6e3d860
C-Netz: Add code documentation...
2016-12-01 17:59:08 +01:00
Andreas Eversberg
33e0bc5f4e
C-Netz: Remove global variables, because they don't speed up anything
2016-10-07 09:14:22 +02:00
Andreas Eversberg
27938d111e
Added and fixed extra compiler warnings
2016-10-07 08:55:18 +02:00
Andreas Eversberg
8ef966aa21
C-Netz: Reset FSK decoder when switching channel mode
...
This prevents corrupt frames, as well as clear pending frames that
were received during the old mode, but may not be received during
the new mode.
2016-10-07 08:00:34 +02:00
Andreas Eversberg
6a5af9aeac
Typos: acknowledgement -> acknowledgment signalling -> signaling
2016-07-24 12:31:08 +02:00
Andreas Eversberg
7aa2445b47
Move amplitude (level) debugging to debug.c
2016-05-15 20:37:06 +02:00
Andreas Eversberg
46fa72894e
C-Netz: Calibration/fix processing of tone levels on TX and RX side
...
FSK and compander levels are adjusted.
Eliminate offsets between subsequent speech chunks. This is done by
high-pass filter. An offset is not passed to the filter.
Do correct audio processing chain:
time compress -> compressor -> scrambler / pre-emphasis -> TX
RX -> de-scrambler / de-emphasis -> expander -> time expand
2016-05-13 09:37:03 +02:00
Andreas Eversberg
16acdbf59d
Implementation of C-Netz (German mobile telephone system)
2016-04-24 15:19:00 +02:00
