- TITLE:
-
Integer-coefficient FIR filter sharpening for
equiripple stopbands and maximally flat passbands
- AUTHORS:
- J. O. Coleman
- ABSTRACT:
-
Linear-phase FIR filters with deep, equiripple
stopbands are constructed using Chebyshev polynomials
to sharpen short linear-phase subfilters. The
Chebyshev recursion yields a natural implementation
structure using only local interconnections between
subfilter copies. Small-integer coefficients often
suffice for the subfilters, because of their shallow
stopbands, and power-of-two coefficients often suffice
for the sharpening structure. Included are several
passband-flattening techniques, most of which also use
only small-integer coefficients.
- ONLINE VERSIONS:
-
preprint (0.34 Mbytes)
at IEEE Xplore (0.62 Mbytes)
presentation (0.5 Mbytes)
- STATUS:
- Presented to the 2014 IEEE International Symposium on Circuits and Systems, Melbourne, Australia,
June 1-5, 2014.
- DATE OF ENTRY:
-
Aug 2014.