I use the random_source in the GRC to generate the 0,1
sequence,but I do not know the bit rate of the sequence.So can anynoe
tell me the bit rate of the sequence which is generated by the
Besides, I saw there is a pick_bitrate.py in the
/gnuradio-example/python/digetal. Is this the program which is to
decide the bit rate of the data send by the USRP?
The bit-rate or sample-rate is determined by the first block in the flow
graph that conceptually treats the stream as having a “rate”.
The signal source block outputs periodic signals so it must have the
concept of a sample rate. However, a random source, noise source, or a
constant source does not.
If you were to connect the output of the random source to a scope or fft
display, the display would need to know the sample rate in order to
scale its axis. And therefore the concept of bit-rate or sample-rate
becomes defined by the parameters of the graphical display.