Title :
A new ordering method for FIR filters based on finite word length effect on moments of impulse response
Author :
Khare, Anul ; Yoshikawa, Toshinori
Author_Institution :
Dept. of Electr. Eng., Nagaoka Univ. of Technol., Niigata, Japan
Abstract :
The effect of the finite word length on the moment of the impulse response of a digital filter is investigated. It is shown that the quantization error in the moment values is almost linear with a slope of 3 dB/b and is well related to the output roundoff noise. An algorithm is also proposed to order the cascade sections of a finite impulse response (FIR) filter with low output roundoff noise
Keywords :
digital filters; roundoff errors; transient response; FIR filters; algorithm; cascade sections; digital filter; finite impulse response; finite word length effect; impulse response moments; ordering method; output roundoff noise; quantization error; Arithmetic; Digital filters; Finite impulse response filter; Frequency; Poles and zeros; Quantization;
Conference_Titel :
TENCON '92. ''Technology Enabling Tomorrow : Computers, Communications and Automation towards the 21st Century.' 1992 IEEE Region 10 International Conference.
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-0849-2
DOI :
10.1109/TENCON.1992.272036
