|
From: | Tom Rondeau |
Subject: | Re: [Discuss-gnuradio] PSK.py script giving errors |
Date: | Tue, 17 Feb 2015 16:05:56 -0500 |
Hi All,I am trying to make the following system.Packet Generator ------> BPSK Modulator --------> Frequency Hopper ---------------> UHD SinkI 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 maintop_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 KulkarniETH ZurichThis is probably related to a change in version for the psk_mod class. Take a look at the psk.py file you have. The current version looks like:def __init__(self, constellation_points=_def_constellation_points,mod_code=_def_mod_code,differential=_def_differential,*args, **kwargs):So you need that mod_code value set, as well. It's described in the class documentation.Tom
[Prev in Thread] | Current Thread | [Next in Thread] |