Setting taps for analysis_filterbank


#1

How are the taps supposed to be set for Analysis Filterbank,
particularly in GRC?


Marcus L.
Principal Investigator, Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org


#2

Marcus

I was wondering about the same thing earlier this year. Have a look
at gr-pager/src/usrp_flex_band.py. Some of the code:

taps = gr.firdes.low_pass(1.0,
1.0,
1.0/40.00.4,
1.0/40.0
0.1,
gr.firdes.WIN_HANN)

    if options.verbose:
        print "Channel filter has", len(taps), "taps"

    bank = blks2.analysis_filterbank(40, taps)
    self.connect(self.src, bank)

Just remember to connect every output of the filterbank to at least
something. Otherwise none of the outputs output correct data.

Sebastiaan