Title :
Frequency-domain design of 2-D state-space digital filters using adaptive LMS algorithm
Author :
Muneyasu, Mitsuji ; Hinamoto, Takao
Author_Institution :
Fac. of Eng., Hiroshima Univ., Japan
Abstract :
An adaptive technique is developed for designing two-dimensional (2-D) state-space digital filters in the frequency domain. The Roesser local state-space (LSS) model is used to describe the 2-D digital filters. First, the frequency response of the Roesser LSS model is investigated to define a performance index in which the reference signal is specified by magnitude response and group delays in the pass-band. An iterative algorithm based on the least mean square (LMS) method is then presented together with the calculation of gradient vectors required in the adaptive process. Finally, two numerical examples are solved to illustrate the utility of the proposed technique
Keywords :
adaptive filters; frequency-domain analysis; least mean squares methods; network synthesis; state-space methods; two-dimensional digital filters; Roesser local state-space model; adaptive LMS algorithm; frequency response; frequency-domain design; group delays; iterative algorithm; least mean square method; magnitude response; pass-band; performance index; two-dimensional state-space digital filters; Adaptive algorithm; Adaptive filters; Algorithm design and analysis; Delay; Design engineering; Digital filters; Frequency domain analysis; Iterative algorithms; Least squares approximation; Performance analysis;
Conference_Titel :
Circuits and Systems, 1994. APCCAS '94., 1994 IEEE Asia-Pacific Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-2440-4
DOI :
10.1109/APCCAS.1994.514587
