Title :
A study of SPT-term distribution of CSD numbers and its application for designing fixed-point linear phase FIR filters
Author_Institution :
Dept. of Electron. Eng., Huafan Univ., Taiwan, China
Abstract :
The distribution of the signed-powers-of-two (SPT) terms of canonical signed digit (CSD) numbers is nonuniform. In this paper, the author shows an explicit representation of this distribution. Based on this distribution, an algorithm is proposed for designing fixed-point linear phase FIR filters with CSD coefficients. Design examples demonstrate that the algorithm can produce filters using fewer SPT terms than other methods
Keywords :
FIR filters; digital filters; filtering theory; fixed point arithmetic; linear phase filters; CSD numbers; SPT-term distribution; canonical signed digit numbers; explicit representation; fixed-point FIR filters; linear phase FIR filters; signed-powers-of-two terms; Design engineering; Finite impulse response filter; Nonlinear filters;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921067
