On 01/15/2012 04:41 AM, Anders wrote:
I am experiencing problems with the remez command in
Octave 3.2.4 on Windows. I have tried a number of different orders
and griddensities, but all seem to give error. I am trying to
define a differentiator.
Example: B=remez(4,[0 0.8],[0 0.8]*pi,'differentiator',4*1024)
gives me coefficients
-0.02488 0.35098 -1.00103 0.00000 ... (neg. symmetry)
MATLAB's firpm, which I understand should give the same (similar)
output, gives
B= 0.1519 -0.4161 0.9424 0
The MATLAB result is a really decent differentiator, which cannot
be said about the remez output.
Could anyone hint me at a solution? Have I misunderstood anything
about the remez function?
Anders
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I don't think this function works. I have not tried it in a long
time, but I never got any useful results. I played around with it
enough to believe it would not be hard to fix, but it has never
bubbled up the priority stack enough to actually do it.
Bob
Bob
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