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[Discuss-gnuradio] gr.firdes.band_pass
From: |
Marcus D. Leech |
Subject: |
[Discuss-gnuradio] gr.firdes.band_pass |
Date: |
Sun, 04 Apr 2010 00:56:33 -0400 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.8) Gecko/20100301 Fedora/3.0.3-1.fc12 Thunderbird/3.0.3 |
Does firdes.band_pass *always* produce a working filter?
I assume that it uses the Remez exchange algorithm to do its work. What
happens if you ask for
for a filter that can't be realized?
Right now, I have a bunch of filters that are roughly 200Hz wide, and
I'd asked firdes.band_pass to
produce filters that had 5Hz transition bands. The result was a CPU
hog, so I backed-off to transition
bands that are roughly 20Hz wide. Less CPU usage now. Is there any
way to tell if firdes.band_pass produced
a correctly "converged" filter?
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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