[Discuss-gnuradio] how to get a range of receiving SNRs

2012-07-03 Thread azalea au
Dear all, I'm transmitting some data between two usrps (N210) and using OFDM blocks in GRC in the two computers. My experiment is getting BER in a range of SNRs, like 0~20dB. So I need to set the usrps to get a range of SNRs. However, fixing one usrp and moving the other along a line from 0m to

[Discuss-gnuradio] make check errors in release 3.5.0

2012-06-13 Thread azalea au
Hi all, I'm having "make check" errors when installing gnuradio 3.5.0: make[7]: Entering directory `/home/azalea/Desktop/gnuradio-3.5.0/gr-trellis/src/python' Traceback (most recent call last):   File "./qa_trellis.py", line 32, in     import digital_swig ImportError: No module named digital_swi