Manolis Surligas
73d68a7131
Merge branch 'old-gcc-fix' into 'master'
...
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
Manolis Surligas
1c20782d6a
Remove put_time() in favor of strftime() to support older gcc versions
2017-12-03 23:24:17 +02:00
Manolis Surligas
53e0db48d6
Add AFSK1200 decoder
...
* 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
Manolis Surligas
2de1d91fae
Improve the CW decoder flowgraph
2017-11-01 22:04:56 +02:00
Manolis Surligas
5d7af423a8
Window number to dot duration should be sufficient enough
2017-11-01 22:04:56 +02:00
Manolis Surligas
f560f16af3
Improve CW decoding process
...
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
Manolis Surligas
52efa4c8bd
Finish the CW encoder
...
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
Manolis Surligas
8d34e937ee
Continue with the CW encoder
2017-11-01 22:04:56 +02:00
Manolis Surligas
9b9f8c92ad
Simpify CW decoder
2017-11-01 22:04:56 +02:00
Manolis Surligas
94eef1463c
Improve CW decoding performance and complexity
2017-11-01 22:04:56 +02:00
Manolis Surligas
5d9fc19e3b
Simplify CW decoding
2017-11-01 22:04:56 +02:00
Manolis Surligas
ea5a5632f5
Add CW decoder
...
* 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
Manolis Surligas
ca1b8b1242
Output messages in text files
...
* 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
Manolis Surligas
e114eb0cd0
Remove CW matched filter block
...
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
Manolis Surligas
7b8ef57d37
Add FSK9600 AX.25 decoder
2017-09-20 17:54:02 +03:00
Manolis Surligas
62cdbf7e51
NOAA sink fix
...
* 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
Manolis Surligas
2bac7e1f32
Change NOAA output naming scheme
...
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
George Vardakis
36e3aa66a6
Change filename on noaa to match new satnogs-client naming
2017-08-09 20:02:19 +03:00
Kostis Triantayllakis
cce9f3d981
Introduce IQ sink block
2017-08-08 17:00:12 +03:00
Manolis Surligas
071e16b08d
Merge pull request #101 from GVardakis/noaa_sync_fix
...
Fix NOAA APT Sink synchronization issue
2017-08-04 19:11:45 +03:00
George Vardakis
53e1b326d8
Fix NOAA APT Sink synchronization issue
2017-08-04 16:29:53 +03:00
Nikos Karamolegkos
813d6b9f74
Fix bug with the name of file
2017-08-03 12:39:38 +03:00
Nikos Karamolegkos
fe1b612010
Fix bug with gcc<5 and minor changes to filenames
2017-08-02 18:06:21 +03:00
Nikos Karamolegkos
bca58383b7
Add sink block for saving the frame to file
...
Supported file types txt, bin, hex
2017-07-30 13:25:55 +03:00
Manolis Surligas
deb0c57c91
Fix memory leak
2017-07-21 20:49:44 +03:00
George Vardakis
162b435d74
Fix synchronization bug
2017-07-19 20:34:58 +03:00
Alexandru Csete
bb40020207
Fix gr-digital dependency
2017-05-23 22:58:33 +02:00
George Vardakis
69408578e2
Fix NOAA png filename issue
2017-05-15 17:56:14 +03:00
Manolis Surligas
f1ff356193
Support fixed packet length frames on the FSK decoder
2017-04-15 02:41:47 +03:00
Manolis Surligas
a8d0eae736
Add support for arbitraty descrambling polynomials on the FSK receiver
2017-04-15 01:23:47 +03:00
George Vardakis
be9f1212be
Fix possible bug in FSK decoder
2017-04-11 11:43:35 +03:00
George Vardakis
bb2401356a
Add option for rotating image
2017-04-10 18:03:00 +03:00
George Vardakis
d4fbd62c03
Remove output of byte file
2017-04-10 15:23:19 +03:00
George Vardakis
401e8f5248
Add documentation and synchronization option
2017-04-10 00:19:57 +03:00
George Vardakis
3b30b6b78e
Add split image functionality
2017-04-09 17:20:02 +03:00
George Vardakis
d76264adeb
Implement NOAA sink block
2017-04-08 21:56:44 +03:00
Manolis Surligas
165423d64c
Ogg source ( #70 )
...
* 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
Manolis Surligas
c83e53f9b5
Dev ( #67 )
...
* 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
Manolis Surligas
d95b903097
Fix missing break statement
2017-02-03 19:25:53 +02:00
Manolis Surligas
11063b61f2
Fix OGG encoder issues
2017-02-03 01:24:10 +02:00
George Vardakis
639c372a22
Implement ogg encoder block
2017-02-02 21:05:02 +02:00
Manolis Surligas
50098ee879
Dev ( #53 )
...
* 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
Manolis Surligas
32b853134a
Fix Doppler shift direction ( #43 )
2016-11-22 11:49:42 +02:00
Manolis Surligas
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
Manolis Surligas
33a27566c8
Improve build system and installation documentation ( #33 )
...
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
Manolis Surligas
63863b5ac1
Rpi ( #32 )
...
* Fix compilation on Raspbian
* Add rtl-sdr dongle to the RX HW database
2016-10-11 19:39:37 +03:00
Manolis Surligas
6e3d8f9c10
Remove unnecessary block
2016-08-26 19:50:20 +03:00
Manolis Surligas
5056189d5e
Improve the performance of AX.25 decoder
...
* 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
Manolis Surligas
a92eb283ff
Add the QB50 deframer block
...
The block is able to separate WOD AX.25 frames from normal ones.
2016-07-27 17:38:49 +03:00
Manolis Surligas
6d4d51b825
Fix bug at AX.25 bit stuffing on the decoder
2016-07-07 17:57:06 +03:00
Manolis Surligas
ee26a102bd
Small improvements
2016-07-02 23:01:17 +03:00
Manolis Surligas
1c30dfe145
Add AX.25 decoder with legacy support for the hardware radios
2016-07-02 00:18:44 +03:00
Manolis Surligas
ddb6ce050f
Merge branch 'next' of https://github.com/satnogs/gr-satnogs into next
...
# Conflicts:
# lib/upsat_fsk_frame_encoder_impl.cc
2016-06-30 23:44:05 +03:00
Manolis Surligas
92843c43c9
Add AX.25 encoder that supports the legacy hardware radios
...
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
Manolis Surligas
a22d37e961
Improve and make more generic the whitening mechanism
...
* The AX.25 framing now supports whitening.
* Change again the AFSK flowgraph.
2016-06-22 15:37:27 +03:00
Manolis Surligas
6ed86dbae5
Add new debug message source that can accept raw bytes
2016-06-02 17:06:40 +03:00
Manolis Surligas
f8cc294e6f
Add UPSat communication flowgraphs
2016-05-30 04:43:49 +03:00
Manolis Surligas
ed96930438
Small bug fix
...
The new[] deamon appeared again!
2016-05-17 20:18:20 +03:00
Manolis Surligas
7009f9cdb9
Fix small issues
2016-05-15 00:07:23 +03:00
George Vardakis
fb9f887587
Small change to hex print
2016-05-14 19:48:21 +03:00
George Vardakis
855ac47c26
Added the "0x" prefix to hex representation
2016-05-13 16:19:47 +03:00
George Vardakis
455e19e466
Added hex and binary output sink
2016-05-13 15:57:33 +03:00
Manolis Surligas
c28c82c873
Add coarse doppler shift correction block
2016-05-11 21:17:58 +03:00
Manolis Surligas
8a81ebc4ff
Fix frame length bug at UPSAT FSK transmitter
...
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
Manolis Surligas
df8cffbe1a
Remove blocking timeout parameter for compatibility
2016-05-09 22:07:39 +03:00
Manolis Surligas
3d67b098ef
Merge branch 'next' of https://github.com/satnogs/gr-satnogs into next
2016-05-09 20:57:09 +03:00
Manolis Surligas
76c28b0b21
Change the pmt::to_float() to pmt::to_double() for compatibility
2016-05-09 20:56:44 +03:00
Manolis Surligas
6b98025cf5
Fix memory de-allocation at rigctl message source block
2016-05-09 03:14:44 +03:00
Manolis Surligas
926eca7f8e
Fix memory corruption
2016-05-09 03:04:31 +03:00
Manolis Surligas
e79e98fbd8
AX.25 support at the UPSAT FSK encoder/decoder
2016-04-29 21:43:09 +03:00
Manolis Surligas
652c257b01
Add UDP PMT message sink block
2016-04-29 02:21:00 +03:00
Manolis Surligas
382e5a615b
Start the AX.25 integration into UPSAT FSK framing
2016-04-26 22:21:42 +03:00
Manolis Surligas
5497dce87f
Fix the burst tag issue at the FSK frame encoder
2016-04-15 20:59:09 +03:00
Manolis Surligas
10d4519bcb
Implement the whitening and de-whitening process for the UPSAT
...
The data whitening and de-whitening mechanism is implemented using
lookup tables for fast processing times. The implementation is quite
generic and modular supporting user defined polynomial masks and seeds.
The lookup table is created during the initialization without any
runtime overhead.
2016-04-11 21:26:57 +03:00
Manolis Surligas
34ae5f143b
Fix CRC16 calculation and transmission
...
The CC1120 uses the non-reversed version of the CRC16-CCIIT. Also the
CRC16 is transmitted in network byte order
2016-04-09 18:39:02 +03:00
Manolis Surligas
0c354da145
Finish the FSK frame encoder for the CC1120
2016-04-08 21:41:21 +03:00
Manolis Surligas
e80486cc07
FSK receiver for the CC1120 works!
...
The FSK receiver of the CC1120 can now retrieve the frame that is
transmitted over the air. The next step is to provide the support for
data whitening and Manchester coding.
2016-04-07 19:49:41 +03:00
Manolis Surligas
228fd37014
Implement the UPSAT FSK encoder block.
...
Fix also a small bug at the UPSAT FSK decoder block.
2016-04-06 21:27:46 +03:00
Manolis Surligas
4b3b08f200
Finished the FSK frame acquisition.
2016-04-05 21:29:23 +03:00
Manolis Surligas
bb57d63517
Continue with the FSK decoder for the UPSAT
2016-04-04 00:29:28 +03:00
Manolis Surligas
6ae7614af2
Start the FSK frame acquisition block of the UPSAT.
...
After managing to successfully receive raw bytes from the TI devboard
with the CC1120, its now time to pack them into a frame by searching for
the preamble and synchronizing with the known byte sync word.
2016-04-02 23:02:38 +03:00
Manolis Surligas
5659dc6b0a
Merge branch 'vardakis/json_to_ecss' of https://github.com/GVardakis/gr-satnogs into GVardakis-vardakis/json_to_ecss
2016-04-02 22:31:22 +03:00
Manolis Surligas
97b141d267
Fix a memory allocation issue
2016-04-02 22:26:31 +03:00
George Vardakis
1b0791e9d0
Last commit about license
2016-04-02 17:32:41 +03:00
George Vardakis
a5fea217d6
Completed change of license in all files
2016-04-02 17:31:30 +03:00
George Vardakis
1e4d1e1846
Changed license, removed .orig files and changed free method in udp_msg_source
2016-04-02 17:25:40 +03:00
George Vardakis
4fba1a234c
First working version of json_to_ecss_src block
2016-04-02 13:42:57 +03:00
George Vardakis
ecdf310540
Fixed small bug
2016-04-01 19:51:31 +03:00
George Vardakis
138a00b2b2
Merge branch 'next' of https://github.com/satnogs/gr-satnogs into next
2016-04-01 19:48:24 +03:00
George Vardakis
7321707c61
Finished adding block json_to_ecss_src
2016-04-01 19:44:40 +03:00
Manolis Surligas
82c9ff2850
Fix the doppler correction mechanism
...
The doppler correction mechanism has successfully passed the first tests
using the GPredict software for the radio control. The corrections seems
to be quite smooth. The next step is to apply it at an audible signal.
2016-03-31 21:58:29 +03:00
Manolis Surligas
b218ed282c
Improve rigctl support
...
Now the rigctl message source block can handle properly the commands
that are issued by the Gpredict software.
2016-03-31 19:52:32 +03:00
Manolis Surligas
b96c84c401
Continue working on the Doppler Correction block
...
Actually the block seems to be ready, however proper testing is
necessary
2016-03-30 21:51:19 +03:00
Manolis Surligas
5ac7fa4759
Merge branch 'next' of https://github.com/satnogs/gr-satnogs into next
...
# Conflicts:
# grc/CMakeLists.txt
# include/satnogs/CMakeLists.txt
# lib/CMakeLists.txt
# swig/satnogs_swig.i
2016-03-29 22:59:36 +03:00
Manolis Surligas
4c72875f88
Add frame encoder block
2016-03-28 18:24:50 +03:00
Manolis Surligas
e242624312
Create doppler shift correction block
2016-03-28 18:09:16 +03:00
Manolis Surligas
4e1be5ee44
Add a TCP rigctl message command accepter block.
...
The purpose of this block is to grab rigctl compatible commands from the
gr-satnogs client software and use the set_freq command in order to
compensate the doppler shift effect.
2016-03-21 03:50:42 +02:00
Manolis Surligas
73e2c8d9ca
Start integrating telemetry and telecommands methods
2016-03-16 01:54:13 +02:00
Manolis Surligas
0e0a3e0c08
Finish the AX.25 decoder and add a UDP message source block
...
The AX.25 decoder is now decoding the received frames.
Also, the module now provides a UDP message source block. This block
will be responsible to receive UDP packets and transform them into PMT
messages for further processing in the GNU Radio flowgraph. As the
communication with the satnogs-client will be done in the same host, we
do not have to care about packet loss.
Furthermore, the module now provides and a debug message source block
for easy debugging.
2016-03-08 23:19:17 +02:00
Manolis Surligas
75289e11d5
Add AX.25 frame encoding support
2016-03-02 19:59:18 +02:00