Hi All,
I am trying to make the following system.
Packet Generator ------> BPSK Modulator --------> Frequency Hopper ---------------> UHD Sink
I read that the generic block psk.py can be used as a BPSK modulator so for the 1st two blocks I use the class psk_mod(generic_mod), setting the constellations as 2. Also the input to this block is a byte stream. So the 1st two blocks of my system are set.
For frequency hopper () I want to send every new BPSK modulated packet on a different frequency seperated at 5MHz starting from 2.40Ghz) as I use the frequency_hopping.py module which uses stream_tags for frequenncy tuning. and Finally connecting it to the usrp sink.
Final system looking like this psk_mod (hier_block2), hopper_block(hier_block2)
self.connect(psk_mod, hopper_block, self.sink)
However the PSK block gives the following errors.
1. Traceback (most recent call last):
File "./psk_fh.py", line 301, in <module>
main()
File "./psk_fh.py", line 294, in main
top_block = FlowGraph(args)
File "./psk_fh.py", line 258, in __init__
src = "">
File "./psk_fh.py", line 119, in __init__
super(psk_mod, self).__init__(constellation, differential, *args, **kwargs)
TypeError: __init__() takes exactly 4 arguments (3 given)
Any help to resolve this or another approach to this system is appriciated.
-
Vaibhav Kulkarni
ETH Zurich
- [Discuss-gnuradio] PSK.py script giving errors,
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