|Subject:||[Discuss-gnuradio] question about a parameter in the example digial-bert|
|Date:||Tue, 12 Apr 2011 18:50:41 +0800|
When I look at the code in the receive_path.py which is under the digital-bert folder, I found this sentence:
self._snr_probe = gr.probe_mpsk_snr_c(10.0/symbol_rate)
I think this is to set the block which measure the snr of the signal. And after I read the code in the gr_probe_
mpsk_snr_c.h/.cc, I think (10.0/symbol_rate) may be the parameter alpha in the snr block.And the description about
the parameter in the block is:Mean and variance smoothing filter constant. But I do not know why should we set the
value as (10.0/symbol_rate),in other words,how should I set this value if I want use this block for other flow graph?
What rules should I follow? I hope somebody can help me for that.
Thanks in advance.
|[Prev in Thread]||Current Thread||[Next in Thread]|