DocumentCode
1463212
Title
A design method for half-band FIR filters
Author
Willson, A.N. ; Orchard, H.J.
Author_Institution
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Volume
46
Issue
1
fYear
1999
fDate
1/1/1999 12:00:00 AM
Firstpage
95
Lastpage
101
Abstract
Present methods for designing half-band filters use iterative approaches such as the well-known Parks-McClellan algorithm or some variant of linear programming. Here we give a direct method using Chebyshev polynomials, which provides a reduction in design time over previous methods by about a factor of ten. For all practical purposes the response of the resulting filter is equal-ripple in both passband and stopband. A listing of a Fortran program for carrying out the design is included
Keywords
Chebyshev filters; FIR filters; band-pass filters; circuit CAD; digital filters; Chebyshev polynomials; Fortran program; design time; direct method; equal-ripple response; half-band FIR filters; passband; stopband; Algorithm design and analysis; Chebyshev approximation; Design methodology; Finite impulse response filter; Iterative algorithms; Iterative methods; Linear programming; Nonlinear filters; Passband; Polynomials;
fLanguage
English
Journal_Title
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
Publisher
ieee
ISSN
1057-7122
Type
jour
DOI
10.1109/81.739257
Filename
739257
Link To Document