Error spectrum shaping in 2-D digital filters

Author

Hinamoto, Takao ; Karino, Shuji ; Kuroda, Naoki

Author_Institution

Fac. of Eng., Hiroshima Univ., Japan

Volume

1

fYear

1995

fDate

30 Apr-3 May 1995

Firstpage

348

Abstract

A technique for reducing the output noise variance in two-dimensional (2-D) recursive digital filters is developed by means of the high-order error feedback consisting of a 2-D FIR digital filter. First, the optimal error feedback coefficients in the 2-D FIR digital filter are derived. Next, the suboptimal error feedback coefficients are found in which the coefficients in the 2-D FIR digital filter are constrained to be symmetric. Finally, a numerical example is given to illustrate the utility of the proposed technique

Keywords

FIR filters; circuit feedback; circuit optimisation; recursive filters; two-dimensional digital filters; 2D digital filters; FIR digital filter; error spectrum shaping; high-order error feedback; optimal error feedback coefficients; output noise variance; recursive digital filters; suboptimal error feedback coefficients; Digital filters; Electronic switching systems; Feedback; Finite impulse response filter; IIR filters; Noise reduction; Noise shaping; Quantization; Transfer functions; Two dimensional displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on

Conference_Location

Seattle, WA

Print_ISBN

0-7803-2570-2

Type

conf

DOI

10.1109/ISCAS.1995.521522

Filename

521522