NDLI: Design of discrete coefficient frequency-response-masking FIR digital filters

Content Provider	IEEE Xplore Digital Library
Author	Chengyou Wang Hon Keung Kwan
Copyright Year	2008
Description	Author affiliation: Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha (Chengyou Wang) \|\| Dept. of Electr. & Comput. Eng., Univ. of Windsor, Windsor, ON (Hon Keung Kwan)
Abstract	In this paper, two methods to design frequency-response-masking (FRM) FIR digital filters with discrete coefficients obtained from optimal continuous coefficients are investigated. First, a one-by-one (OBO) quantization from optimal continuous coefficients is described. Then, a novel recursion design (RD) is presented, which reduces computation by searching only possible quantization sequence in next recursion from the minimum magnitude response error in last recursion. To decrease current magnitude response error, the normal quantization is modified by adding an integer multiple of the quantization step value. For a further reduction, a re-optimization is inserted into the recursion procedure. A design example shows that RD can obtain the discrete coefficients with smaller maximum passband magnitude ripple than those using direct quantization (DQ) and OBO; whereas its maximum stopband magnitude ripple is almost identical to that of OBO.
Starting Page	461
Ending Page	464
File Size	442993
Page Count	4
File Format	PDF
ISBN	9781424423415
e-ISBN	9781424423422
DOI	10.1109/APCCAS.2008.4746060
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-30
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Finite impulse response filter Digital filters Quantization Design optimization Frequency response Design engineering Design methodology Passband Linear programming Frequency synthesizers
Content Type	Text
Resource Type	Article

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