how to log the IQ samples of all the valid IRIDIUM packets

[zhusiyu6]

In paper "PAST-AI: Physical-layer Authentication of Satellite Transmitters via Deep Learning",author modified the gr-iridium model to log the IQ samples of all the valid IRIDIUM packets. But I found that these modules are closed. So is there any way to modify them?

[Sec42]

We are not the authors of said paper, so I can't tell you anything about their code.

iridium-extractor specifically has the --debug-id command line option to log iq values of a specific signal. This will write the iq values at different stages of the reception process via the write_data_c function

gr-iridium/lib/burst_downmix_impl.cc

Line 42 in 8ebf2a8

void write_data_c(const gr_complex* data, size_t len, char* name, int num)

I think that would be a good starting point if you want to replicate their work.

[zhusiyu6]

Thank you.

[zhusiyu6]

We are not the authors of said paper, so I can't tell you anything about their code.

iridium-extractor specifically has the --debug-id command line option to log iq values of a specific signal. This will write the iq values at different stages of the reception process via the write_data_c function

gr-iridium/lib/burst_downmix_impl.cc

Line 42 in 8ebf2a8

void write_data_c(const gr_complex* data, size_t len, char* name, int num)

I think that would be a good starting point if you want to replicate their work.

I want to ask what is the specific meaning of the parameter value after - debug-id

[Sec42]

This parameter is documented in the readme.