| Author |
Message |
Steve Underwood
Guest
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 Posted:
Mon Dec 05, 2005 5:16 pm Post subject:
meteor and phase related constraints |
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Hi,
I remember someone here saying the meteor filter design tool can apply
phase related constraints to a filter design. Looking at the input
specification for meteor, it seems the constraints are purely magnitude
related. Am I missing something?
Regards,
Steve |
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Peter K.
Guest
|
| Posted:
Mon Dec 05, 2005 5:16 pm Post subject:
Re: meteor and phase related constraints |
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|
Steve Underwood wrote:
| Quote: | I remember someone here saying the meteor filter design tool can apply
phase related constraints to a filter design. Looking at the input
specification for meteor, it seems the constraints are purely magnitude
related. Am I missing something?
|
Steve,
Meteor mostly deals with linear phase filters, so I'm not sure that
phase contraints can be included. See:
http://www.cs.princeton.edu/~ken/meteor_article.pdf
Ciao,
Peter K. |
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robert bristow-johnson
Guest
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| Posted:
Mon Dec 05, 2005 11:17 pm Post subject:
Re: meteor and phase related constraints |
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Peter K. wrote:
....
| Quote: | Meteor mostly deals with linear phase filters, so I'm not sure that
phase contraints can be included.
|
however, there is that trick at dspguru by Eric Jacobsen: "Using P-M to
design a non-linear phase FIR filter",
http://www.dspguru.com/comp.dsp/tricks/dsn/nlp_fir.htm that can be used
with meteor (just as it has with P-McC) to design arbitary phase
(within constraints of causality) FIR filters if meteor is capable of
designing anti-symmetrical filters (such as Hilbert transformers).
r b-j |
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