Re: [Discuss-gnuradio] Specify taps for 'FFT_Filter' using function call to 'GLFSR Source'

[Cinaed Simson]

Try

  from gnuradio import digital as digital
  src=digital.glfsr_source_f(13,False,0x0000100D,0xA5A5)
  src.period()

src has type <gr_block glfsr_source_f (0)>

Unfortunately, I don't know enough to be able to convert to an array of
floats need for filter taps.

-- Cinaed


On 09/26/2017 05:45 PM, Chad Spooner wrote:
> All:
> 
> I've got a working signal generator in GRC that uses the FFT Filter
> block. In the Taps
> field of this block, I've hand-entered a length-31 sequence that is an
> MLSR sequence.
> These sequences can be generated using the GRC block GLFRS Source as well.
> 
> What I would like to do is call GLFSR from within  the FFT Filter Taps
> field with arguments
> that depend on a Parameter. Specifically, the Degree parameter of GLFSR
> would
> be tied to a Parameter in the flowgraph.
> 
> I've been searching around the web for a way to do this, but I can't
> seem to find how
> to call things like GLFSR as opposed to using the GLFSR block in GRC. My
> Google
> searches do not seem to contain the correct keywords to get me to the
> help I need.
> 
> I'd appreciate any hints, especially links to explanations on the web.
> 
> Thanks!
> 
> Chad
> 
> -- 
> Chad M. Spooner
> NorthWest Research Associates
> 301 Webster Street
> Monterey, CA 93940
> address@hidden
> 831 582 4904
> cyclostationary.blog
> 
> 
> 
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