The design of peak constrained least squares FIR filters with low complexity finite precision coefficients

Author

Fox, W. ; Turner, L.E.

Author_Institution

Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada

Volume

2

fYear

2001

fDate

6-9 May 2001

Firstpage

605

Abstract

A method for the design of peak constrained least squares (PCLS) finite duration impulse response (FIR) digital filters with low complexity finite precision coefficients (FPC) based on Adams optimality criterion and an efficient local search is presented. Simple quantization of the infinite precision coefficients typically leads to filter designs which fail to meet the frequency response, passband to stopband energy ratio (PSR), and coefficient complexity (number of coefficient adders and subtracters) specifications. It is shown that it is possible to design a filter with an acceptable PSR that meets the frequency response specification while using a specified number of adders and subtracters

Keywords

FIR filters; VLSI; adders; digital filters; least squares approximations; Adams optimality criterion; adders; coefficient complexity; digital filters; efficient local search; frequency response specification; infinite precision coefficients; low complexity finite precision coefficients; passband to stopband energy ratio; peak constrained least squares FIR filters; subtracters; Costs; Design methodology; Finite impulse response filter; Flexible printed circuits; Frequency response; Hardware; Least squares methods; Passband; Quantization; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-6685-9

Type

conf

DOI

10.1109/ISCAS.2001.921143

Filename

921143