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Problems with Remez Exchange
Convergence
unlikely
for
FIR filters
longer than a few hundred taps or so
Fundamentally
real
polynomial approximation
on the unit circle
Applies only to
linear phase
filters
Sometimes need optimal weighted
complex
approximation
e.g.,
minimum phase
FIR filter design
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``
The Window Method for FIR Digital Filter Design}
'', by
Julius O. Smith III
, (From Lecture Overheads,
Music 421
).
Copyright ©
2020-06-27
by
Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),
Stanford University
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