DocumentCode :
1199879
Title :
Constrained eigenfilter design without specified transition bands
Author :
Ying-Man Law ; Chi-Wah Kok
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Volume :
52
Issue :
1
fYear :
2005
Firstpage :
14
Lastpage :
21
Abstract :
The design of a finite-impulse response (FIR) filter with constraints in the frequency domain and/or time domain is considered. We further consider the design specification without explicitly specified transition band bandedges. An iterative algorithm without transition band specification is proposed to design FIR filters with various design constraints. We suggest the possible design tradeoff between transition band bandwidth and the ripple size of the filter. The proposed algorithm can be used to design filters with an optimal tradeoff from the design specification. The eigenfilter formulation further allows the propose algorithm to incorporate time-domain constraints simultaneously. Various design examples are presented to illustrate the versatility of the digital filter obtained by the propose algorithm. Although we have not proven the convergence of the proposed algorithm, it is found to converge efficiently in all the simulations.
Keywords :
FIR filters; design; iterative methods; constrained eigenfilter design; design constraints; design specification; digital filter; finite-impulse response filter; frequency domain constrains; iterative algorithm; peak constraint; time domain constrains; transition band bandwidth; transition band specification; transition bands; Algorithm design and analysis; Band pass filters; Bandwidth; Design methodology; Digital filters; Finite impulse response filter; Iterative algorithms; Least squares approximation; Least squares methods; Time domain analysis; Eigenfilter; peak constraint; time-domain constraint; transition band bandwidth;
fLanguage :
English
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
Publisher :
ieee
ISSN :
1549-7747
Type :
jour
DOI :
10.1109/TCSII.2004.838659
Filename :
1375052
Link To Document :
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