Title :
Multiplierless Polynomial-Operator-Based IR Filters for Efficient VLSI Implementation
Author :
Lei, Chi-Un ; Wong, Ngai
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ.
Abstract :
An improved multiplierless digital filter in transposed direct form II (DFIIt) structure is proposed for efficient VLSI implementation. The traditional delay operator is replaced with standardized polynomial operator. Coefficient scaling is implemented using canonical signed digit (CSD) and subexpression sharing. The proposed structure minimizes roundoff noise gain and further reduces hardware complexity
Keywords :
IIR filters; VLSI; CSD; DFIIt structure; IIR filter; VLSI implementation; canonical signed digit; coefficient scaling; digital filter; infinite impulse response; multiplierless polynomial-operator; subexpression sharing; transposed direct form II; very large scale integration; Costs; Delay; Digital filters; Equations; Feedback; Hardware; Noise reduction; Polynomials; Transfer functions; Very large scale integration;
Conference_Titel :
TENCON 2006. 2006 IEEE Region 10 Conference
Conference_Location :
Hong Kong
Print_ISBN :
1-4244-0548-3
Electronic_ISBN :
1-4244-0549-1
DOI :
10.1109/TENCON.2006.343904
