Title :
Local search method for FIR filter coefficients synthesis
Author :
Ye, Zhi ; Chang, Chip-Hong
Author_Institution :
Centre for High Performance Embedded Syst., Nanyang Technol. Univ., Singapore
Abstract :
This paper presents a two-stage local search method for synthesizing finite precision FIR filter coefficients, with the aim to reduce the number of addition/subtraction in the realization of linear phase FIR filters. In the first stage, an initial set of coefficients is formed by taking into consideration the sensitivities of coefficients on frequency response. In the second stage, a tree search algorithm is utilized to achieve the objective function specified by the desirable Normalized Peak Ripple. The size of the search space is also studied.
Keywords :
FIR filters; frequency response; network synthesis; tree searching; FIR filter coefficients synthesis; finite impulse response; frequency response; linear phase FIR filters realisation; local search method; normalized peak ripple; tree search algorithm; Circuit stability; Constraint optimization; Digital signal processing; Electronic mail; Embedded system; Finite impulse response filter; Frequency response; Passband; Search methods; Signal processing algorithms;
Conference_Titel :
Electronic Design, Test and Applications, Proceedings. DELTA 2004. Second IEEE International Workshop on
Conference_Location :
Perth, WA, Australia
Print_ISBN :
0-7695-2081-2
DOI :
10.1109/DELTA.2004.10042
