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The well-known Parks-McClellan program can only design linear phase real FIR filters, and the Remez exchange algorithm is not readily applied for general complex FIR filter design. Here the problem of designing complex FIR filters is solved by dividing the original complex approximation into two real ones such that the Remez exchange algorithm can be applied by slightly modifying the Parks-McClellan-McCalling program. Arbitrary frequency response complex FIR filters and complex all-pass filters can be easily designed by this efficient technique. This approach has several practical advantages such as fast design time and easy implementation with satisfactory performance
Published in:
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
(Volume:44
,
Issue:
2
)
Date of Publication: Feb 1997
- Page(s):
- 170 - 174
- ISSN :
- 1057-7122
- INSPEC Accession Number:
- 5511942
- Digital Object Identifier :
- 10.1109/81.554338
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Feb 1997
- Sponsored by :
- IEEE Circuits and Systems Society
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