gr-gsm

History

Vasil Velichkov 0feb4ab51f Fix the parallel build. - Override the GR_UNIQUE_TARGET function to not append a hash to the target name. - Add explicit dependency between pygen_apps and _grgsm_swig The _grgs_swig needs to be built first because grcc evaluates and verify all imports - Test the parallel build in the docker containers as well		2018-03-22 06:07:24 +01:00
..
apps_data	Added *.desktop files installation a'la GNU Radio.	2017-08-31 21:58:48 +02:00
helpers	Removed all references to 'band'	2017-09-11 10:38:40 +02:00
CMakeLists.txt	Fix the parallel build.	2018-03-22 06:07:24 +01:00
README	Add non-GUI/headless livemon version.	2017-08-28 22:17:38 +02:00
grgsm_decode	Remove 'band' option from grgsm_decode altogether	2017-09-11 10:38:40 +02:00
grgsm_livemon.grc	Fixing missing callback to set_fc in clock_offset_control block	2018-01-23 15:07:08 +01:00
grgsm_livemon_headless.grc	Making arfcn<->freq conversions more robust and uptading apps depending on it	2017-09-06 17:48:38 +02:00
grgsm_scanner	Making arfcn<->freq conversions more robust and uptading apps depending on it	2017-09-06 17:48:38 +02:00

README

This directory contains programs based on gr-gsm:
* grgsm_decode     (old name: airprobe_decode.py) - program for decoding C0 channel 
                    which is most close in terms of functionality to the old gsm-receiver 
                    from Airprobe project, with ability to decode signalling channels and traffic channels with speech 
                    (analysis of the data can be performed in Wireshark, decoded sound is stored to an audio file),
* grgsm_livemon    (old name: airprobe_rtlsdr.py) - interactive monitor of a single C0 channel with analysis 
                    performed by Wireshark (command to run wireshark: sudo wireshark -k -f udp -Y gsmtap -i lo),
* grgsm_scanner    (old name: airprobe_rtlsdr_scanner.py) - an application that scans GSM bands and prints 
                    information about base transceiver stations transmitting in the area.

There are following helper programs for grgsm_decode program:

* grgsm_capture    (old name: airprobe_rtlsdr_capture.py) - program for capturing GSM signal to a file 
                    that can be later processed by grgsm_decode,
* grgsm_channelize (old name: gsm_channelize.py) - splits wideband capture file into multiple files - each contain 
                  single GSM channel.

* grgsm_livemon_headless - command line version of grgsm_livemon.  It
                  is created by changing grgsm_livemon.grc like this:

                   - Change Options block->Generate Options from 'QT
                     GUI' to 'No GUI'.
                   - Set Options block->Run Options to 'Run to
                     Completion'.
                   - Remove the blocks 'QT GUI Range' (gain_slider,
                     fc_slider, ppm_slider) and the 'QT GUI Frequency
                     Sink'.
                   - Change all occurances of <param>_slider to
                     <param> in the XML file.

                  After these changes are done, build the
                  grgsm_livemon_headless python code using the grcc
                  compiler.