[Discuss-gnuradio]usrp_sounder question

[Qi Chen]

Hi all,

I have a question about the usrp_sounder. I realized that it uses a  
custom fpga bit file to avoid the USB I/O bottleneck entirely, which  
makes sense to me. So if I would like to do off-line processing  
(cross-correlation, and etc) instead of real-time, I would use  
usrp_rx_cfile.py to read data off of the usrp. My questions are:
1. where exactly does this python program read data from? does it  
always read data after the ADC or it depends.
2. If I set one usrp to be the transmit sounder, which constantly  
sending out m-sequences, and I could read data off of the ADC, would  
the results make any sense if I do off-line processing? For example,  
I generate an m-sequence of the same length and cross-correlate it  
with the received sequence.

Thanks

Qi Chen