Title :
A minimum-order structure for fixed-point digital filters
Author :
Zilouchian, Ali ; Erdol, Nurgun
Author_Institution :
Dept. of Electr. Eng., Florida Atlantic Univ., Boca Raton, FL, USA
Abstract :
The approximation and optimal implementation of a digital filter with fixed-point arithmetic are investigated. A minimum-order structure is derived which minimizes an upper bound error due to the order approximation and output round-off noise. It is found that the minimum-order structure exhibits some favorable properties, such as absence of limit cycle and robustness of the filter´s constant coefficients. A numerical example is presented to illustrate the proposed design technique
Keywords :
digital arithmetic; digital filters; design; fixed-point arithmetic; fixed-point digital filters; minimum-order structure; order approximation; output round-off noise; upper bound error; Digital filters; Fixed-point arithmetic; Limit-cycles; Noise robustness; Nonlinear filters; Quantization; Registers; Signal analysis; Transfer functions; Upper bound;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.115608
