[srslte-users] Fetch IQ samples

[Peng Wang]

Dear Sir or Madam, 

I am a new srsLTE user and I would like to ask is there any easy way to get the IQ samples? I check the log system but seems that it does not provide the function to log such low level records.

I also checked the source code in folder /lib/src/phy/rf. Since I am using USRPs, I looked into the rf_uhd_imp.c. Looks like the IQ samples can be obtained first here in function rf_uhd_recv_with_time_multi() at the receiving side and in function rf_uhd_recv_with_time_multi() in rf_uhd_send_timed_multi().

My questions are,
1. Can I just add some codes here to save the IQ samples into some text file?
2. If I do so, will I generate some impacts to the timing performance of the system?
3. Do you have any suggestion for me to continue?

Thank you very much!

Best regards,

Peng