Title :
Error spectrum shaping in 2-D discrete systems based on the Fornasini-Marchesini second model
Author :
Hinamoto, Takao ; Karino, Shuji ; Nakagawa, Naoki
Author_Institution :
Fac. of Eng., Hiroshima Univ., Japan
Abstract :
Based on the Fornasini-Marchesini second model, error spectrum shaping is considered in 2-D state-space digital filters. An N-order diagonal error feedback, which consists of a FIR digital filter with integer coefficients, is used to reduce the output quantization noise. The suboptimal integer error-feedback coefficients are found by applying a least squares discrete space optimization procedure. Finally, a numerical example is given to illustrate the utility of the proposed technique
Keywords :
FIR filters; discrete systems; error analysis; feedback; interference suppression; least squares approximations; spectral analysis; state-space methods; two-dimensional digital filters; 2-D discrete systems; 2-D state-space digital filters; FIR digital filter; Fornasini-Marchesini second model; N-order diagonal error feedback; error spectrum shaping; integer coefficients; least squares discrete space optimization procedure; output quantization noise; suboptimal integer error-feedback coefficients; Digital filters; Electronic switching systems; Feedback; Finite impulse response filter; Fixed-point arithmetic; Flexible manufacturing systems; Least squares methods; Noise shaping; Quantization; Transfer functions;
Conference_Titel :
Communications, Computers and Signal Processing, 1997. 10 Years PACRIM 1987-1997 - Networking the Pacific Rim. 1997 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-3905-3
DOI :
10.1109/PACRIM.1997.620395
