Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11001
Title: Frequency-response masking based FIR filter design with power-of-two coefficients and suboptimum PWR
Authors: Lee, WR
Rehbock, V
Teo, KL
Caccetta, L
Keywords: Filter design
Finite-impulse response
Frequency-response masking
Power-of-two coefficients
Simulated annealing
Issue Date: 2003
Source: Journal of circuits, systems and computers, 2003, v. 12, no. 5, p. 591-599 How to cite?
Journal: Journal of Circuits, Systems and Computers 
Abstract: This paper presents a new method for designing sharp linear phase FIR filters with power-of-two coefficients. The method is based on a frequency-response masking technique. In this method, the power-of-two coefficients and continuous scaling parameters of the subfilters are taken to be decision variables, and minimizing peak weighted ripple (PWR) is taken to be the design objective. The resulting nonlinear mixed integer optimization problem for each subfilter is first reduced to an equivalent discrete optimization problem whose search region is then cropped for efficiency of computation, similar to the approach in Ref. 1, although a different cropping strategy is used here. The effectiveness of the method is demonstrated through a lowpass linear phase sharp FIR digital filter example.
URI: http://hdl.handle.net/10397/11001
ISSN: 0218-1266
DOI: 10.1142/S0218126603001045
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