Sebastian
5605c4ef3c
Fixed slating issues caused by NaN samples
2018-07-18 12:25:53 +03:00
07eb575437
Fix 1/0 correlation between sync_a pattern and sample history in noaa_apt_sink_impl.cc
2018-07-18 12:22:15 +03:00
a797d9bb7b
Use AX.25 address field to reduce false alarms
2018-03-24 23:59:56 +02:00
71caec1edc
Fix 8b10b decoding process
2018-03-24 21:43:19 +02:00
5aae0a1b49
Add block for parsing the FOX slow speed telemetry frames
2018-03-24 21:43:19 +02:00
392b93306f
Fix 8b10b word count issue
2018-03-24 21:43:18 +02:00
f33f46edb9
Add libfec as external project
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The CMake build system will first try to locate libfec in the system. if
it is not available, it will start building the libfec that is part of
the gr-satnogs source code. During the installation libfec is installed
in the system, thus future builds will make use of it and will not
rebuild from source.
2018-03-24 21:43:18 +02:00
02801c9a3f
Improve 8b10b decoder performance and add the CCSDS RS decoder
2018-03-24 21:43:18 +02:00
699acdf53e
Complete 8b10b decoder
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*Export data bytes and erasures in message port
2018-03-24 21:43:18 +02:00
9eedf70d5f
Add sync and decoding states
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Match both control symbols at the beginning
2018-03-24 21:43:18 +02:00
c2d20fbead
Introduce 8b10b Decoder
2018-03-24 21:43:18 +02:00
c1677c8104
Change the quadrature demod filter to sync block
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Seems that there is a probleb with general blocks and the history, so
the filter cannot act as valve. However, it produces zeros, in the
presence of noise.
2018-03-24 21:43:18 +02:00
0d5b295969
Add a quadrature demod filter
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This is an attempt to cut the signal free period after the quadrature
demodulation block. The idea seems that works, but there still an issue
with the samples not passing correctly from the valve.
2018-03-24 21:43:18 +02:00
0074fe7c10
Make consistent the format of the message sink
2018-03-20 20:44:36 +02:00
c1dc11fe4e
Fix timestamp not showing on every message at STDOUT
2018-03-20 20:40:13 +02:00
2fb1bfadfc
Fix AX.25 encoder/decoder
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* Force the left over scrambled bits into the LFSR to be transmitted
* Refactor the decoding process
2018-03-20 20:40:13 +02:00
d7f8d7dbad
Change hex representation fmt to "0x00, 0x02, 0xff"
2018-03-19 21:41:54 +01:00
0287bc6657
Remove obsolete match filtering block
2018-02-02 22:39:49 +02:00
909ae9da78
Fix bug with the frame sink blocks
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* Change clear text format to binary
* Add binary and hex annotated
2018-02-02 22:16:20 +02:00
d8352c1884
Reinstate stop function
2018-02-02 18:44:32 +02:00
eabd2c89f2
Remove split option and increase height size in APT sink block
2018-02-02 18:07:21 +02:00
12a2aa0090
Add minimum frame length on the morse decoder
2018-02-01 21:59:45 +02:00
de05c3f1c4
Several minor improvements
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* Improve CI testing
* Fix compilation warnings
* Bump up version
2018-01-21 22:23:22 +02:00
fd75575828
Merge branch 'LongHairedHacker/gr-satnogs-noaa-apt-sink'
2018-01-05 16:49:38 +02:00
Sebastian
abc385ae5a
Fixed code style issues
2018-01-05 13:37:55 +01:00
Sebastian
7304a0843c
Fixed file naming scheme
2018-01-04 18:34:10 +00:00
Sebastian
5e8958703f
Final cleanup and some more comments
2018-01-04 18:34:10 +00:00
Sebastian
a844248164
Moved sync patterns into the class
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Added constants for magic numbers
2018-01-04 18:34:09 +00:00
Sebastian
6cbe19ba60
Readjust dynamic range after first sync
2018-01-04 18:34:09 +00:00
Sebastian
0e5aeb849f
Using stop instead of destructor for teardown
2018-01-04 18:34:08 +00:00
Sebastian
932369429a
Added minimal documentation
2018-01-04 18:34:08 +00:00
Sebastian
dc2cb5ca29
Syncing works
2018-01-04 18:34:07 +00:00
Sebastian
d15bf778e3
Writing images, split and flip work
2018-01-04 18:34:07 +00:00
Sebastian
234a6cd676
Added libpng++ to dependencies
2018-01-04 18:34:06 +00:00
8dedb9b179
Change to debug level wrong CRC AX.25 frames
2018-01-02 18:14:07 +02:00
73d68a7131
Merge branch 'old-gcc-fix' into 'master'
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Remove put_time() in favor of strftime() to support older gcc versions
See merge request librespacefoundation/satnogs/gr-satnogs!122
2017-12-03 21:26:10 +00:00
1c20782d6a
Remove put_time() in favor of strftime() to support older gcc versions
2017-12-03 23:24:17 +02:00
53e0db48d6
Add AFSK1200 decoder
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* AFSK1200 decoder with AX.25 frame support
* Fix issue with the AX.25 decoder when the frame has only one AX.25
SYNC flag
* Fix clear text debug output to print each one of the characters and
not the string, so that the payload can be partially be printed even if
it contains non-printable characters
* Add AFSK1200 decoder example that can decode frames from an .ogg file
retrieved by the satnogs-network
2017-11-26 22:09:45 +02:00
2de1d91fae
Improve the CW decoder flowgraph
2017-11-01 22:04:56 +02:00
5d7af423a8
Window number to dot duration should be sufficient enough
2017-11-01 22:04:56 +02:00
f560f16af3
Improve CW decoding process
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Our approach exploits the autocorrelation properties of the CW signal.
Thus low, high or band pass filtering greatly affects the performance of
the algorithm, because they introduce autocorrelation.
2017-11-01 22:04:56 +02:00
52efa4c8bd
Finish the CW encoder
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The CW encoder is a debug block that can be used to check the
performance of the CW decoder of gr-satnogs module under different RF
conditions. It can also serve as a perfect debug tool for sattelite
missions.
2017-11-01 22:04:56 +02:00
8d34e937ee
Continue with the CW encoder
2017-11-01 22:04:56 +02:00
9b9f8c92ad
Simpify CW decoder
2017-11-01 22:04:56 +02:00
94eef1463c
Improve CW decoding performance and complexity
2017-11-01 22:04:56 +02:00
5d9fc19e3b
Simplify CW decoding
2017-11-01 22:04:56 +02:00
ea5a5632f5
Add CW decoder
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* Filtering and decimation stages tested for USRP
* TODO: Test filtering for the rest of the SDR devices
2017-11-01 22:04:56 +02:00
ca1b8b1242
Output messages in text files
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* Add support for saving the messages on a text file
* Add timestamp support for each message in ISO 8601 format
2017-11-01 22:04:56 +02:00
e114eb0cd0
Remove CW matched filter block
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CW decoding using match filtering is pretty much useless in LEO.
The information about the tone frequency is very rare and carrier
oscillations during the satellite pass reduce significantly the
performance.
The new next CW decoder is based on the autocorrelation of the received
signal.
2017-11-01 22:04:56 +02:00
7b8ef57d37
Add FSK9600 AX.25 decoder
2017-09-20 17:54:02 +03:00
62cdbf7e51
NOAA sink fix
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* Remove completely the .png extension. satnogs-client will handle the
rest.
* Fix enumeration on the NOAA sink xml
2017-09-20 17:18:59 +03:00
2bac7e1f32
Change NOAA output naming scheme
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NOAA APT decoder will create a file without a timestamp. The
satnogs-client will be resposible to append the proper timestamp.
This change was necessary to avoid the time offset between the start of
the observation timestamp that the APT decoder appends to the filename
and the end of the observation that the client takes into account.
2017-09-19 14:11:45 +03:00
36e3aa66a6
Change filename on noaa to match new satnogs-client naming
2017-08-09 20:02:19 +03:00
cce9f3d981
Introduce IQ sink block
2017-08-08 17:00:12 +03:00
071e16b08d
Merge pull request #101 from GVardakis/noaa_sync_fix
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Fix NOAA APT Sink synchronization issue
2017-08-04 19:11:45 +03:00
53e1b326d8
Fix NOAA APT Sink synchronization issue
2017-08-04 16:29:53 +03:00
813d6b9f74
Fix bug with the name of file
2017-08-03 12:39:38 +03:00
fe1b612010
Fix bug with gcc<5 and minor changes to filenames
2017-08-02 18:06:21 +03:00
bca58383b7
Add sink block for saving the frame to file
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Supported file types txt, bin, hex
2017-07-30 13:25:55 +03:00
deb0c57c91
Fix memory leak
2017-07-21 20:49:44 +03:00
162b435d74
Fix synchronization bug
2017-07-19 20:34:58 +03:00
bb40020207
Fix gr-digital dependency
2017-05-23 22:58:33 +02:00
69408578e2
Fix NOAA png filename issue
2017-05-15 17:56:14 +03:00
f1ff356193
Support fixed packet length frames on the FSK decoder
2017-04-15 02:41:47 +03:00
a8d0eae736
Add support for arbitraty descrambling polynomials on the FSK receiver
2017-04-15 01:23:47 +03:00
be9f1212be
Fix possible bug in FSK decoder
2017-04-11 11:43:35 +03:00
bb2401356a
Add option for rotating image
2017-04-10 18:03:00 +03:00
d4fbd62c03
Remove output of byte file
2017-04-10 15:23:19 +03:00
401e8f5248
Add documentation and synchronization option
2017-04-10 00:19:57 +03:00
3b30b6b78e
Add split image functionality
2017-04-09 17:20:02 +03:00
d76264adeb
Implement NOAA sink block
2017-04-08 21:56:44 +03:00
165423d64c
Ogg source ( #70 )
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* Start Ogg source block
* Add OGG audio source block
The number of output streams for this block should match the number of
audio streams contained inside the ogg file. If there is a mismatch an
appropriate exception is thrown.
2017-04-01 16:21:15 +03:00
c83e53f9b5
Dev ( #67 )
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* Fix UPSat QT parameters
* Fix missing library versioning on CMake
* Fix segfault on the rigctl message source block destruction
2017-03-23 03:22:08 +02:00
d95b903097
Fix missing break statement
2017-02-03 19:25:53 +02:00
11063b61f2
Fix OGG encoder issues
2017-02-03 01:24:10 +02:00
639c372a22
Implement ogg encoder block
2017-02-02 21:05:02 +02:00
50098ee879
Dev ( #53 )
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* UDP Message source can handle multiple data types
* Add a waterfall sink block
* Fix dependency issues with VOLK
* Add mean and max hold mode to the waterfall sink
* Add mean and max hold mode to the waterfall sink
* Install satnogs_waterfall.gp gnuplot script at
<install_prefix>/share/satnogs/scripts
* Automatically retrieve x and y axis ranges at the satnogs_waterfall.gp
2017-01-22 19:33:36 +02:00
32b853134a
Fix Doppler shift direction ( #43 )
2016-11-22 11:49:42 +02:00
f320d841ab
Add supoort to the rigctl message source to work as client
...
Start also the LEO channelizer. It is not yet functional.
2016-10-22 19:34:09 +03:00
33a27566c8
Improve build system and installation documentation ( #33 )
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The build systen now allows to enable/disable the blocks of the OOT
module that are used for development and debugging purposes.
2016-10-12 02:45:21 +03:00
63863b5ac1
Rpi ( #32 )
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* Fix compilation on Raspbian
* Add rtl-sdr dongle to the RX HW database
2016-10-11 19:39:37 +03:00
6e3d8f9c10
Remove unnecessary block
2016-08-26 19:50:20 +03:00
5056189d5e
Improve the performance of AX.25 decoder
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* Decrease false frame detection alarms that can reduce the number of
succesfully decoded frames
* Fix and improve the AX.25 bit stuffing mechanism
2016-08-07 02:11:59 +03:00
a92eb283ff
Add the QB50 deframer block
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The block is able to separate WOD AX.25 frames from normal ones.
2016-07-27 17:38:49 +03:00
6d4d51b825
Fix bug at AX.25 bit stuffing on the decoder
2016-07-07 17:57:06 +03:00
ee26a102bd
Small improvements
2016-07-02 23:01:17 +03:00
1c30dfe145
Add AX.25 decoder with legacy support for the hardware radios
2016-07-02 00:18:44 +03:00
ddb6ce050f
Merge branch 'next' of https://github.com/satnogs/gr-satnogs into next
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# Conflicts:
# lib/upsat_fsk_frame_encoder_impl.cc
2016-06-30 23:44:05 +03:00
92843c43c9
Add AX.25 encoder that supports the legacy hardware radios
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The new encoder now supports NRZI and G3RUH scrambling that makes it
compatible with most of the FSK9600 modems.
Remove also some unneeded blocks.
2016-06-30 23:39:16 +03:00
a22d37e961
Improve and make more generic the whitening mechanism
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* The AX.25 framing now supports whitening.
* Change again the AFSK flowgraph.
2016-06-22 15:37:27 +03:00
6ed86dbae5
Add new debug message source that can accept raw bytes
2016-06-02 17:06:40 +03:00
f8cc294e6f
Add UPSat communication flowgraphs
2016-05-30 04:43:49 +03:00
ed96930438
Small bug fix
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The new[] deamon appeared again!
2016-05-17 20:18:20 +03:00
7009f9cdb9
Fix small issues
2016-05-15 00:07:23 +03:00
fb9f887587
Small change to hex print
2016-05-14 19:48:21 +03:00
855ac47c26
Added the "0x" prefix to hex representation
2016-05-13 16:19:47 +03:00
455e19e466
Added hex and binary output sink
2016-05-13 15:57:33 +03:00
c28c82c873
Add coarse doppler shift correction block
2016-05-11 21:17:58 +03:00
8a81ebc4ff
Fix frame length bug at UPSAT FSK transmitter
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The frame length field was set in number of bits instead of number of
bytes, only when the transmitter was configured in AX.25 mode.
2016-05-11 14:25:16 +03:00
df8cffbe1a
Remove blocking timeout parameter for compatibility
2016-05-09 22:07:39 +03:00
Sebastian
Alexander Jenke
Manolis Surligas
Thanos Gkiolias
Nikos Karamolegkos
DL4PD
George Vardakis
Manolis Surligas
Kostis Triantayllakis
Alexandru Csete