標題: Optimal FIR approximate inverse of linear periodic filters
作者: Wu, JY
Lin, CA
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 2004
摘要: We propose a method for constructing FIR approximate inverse for discrete-time causal FIR periodic filters in the presence of measurement noise. The objective function to be minimized is the sum of the error variance over one period. The optimization problem is formulated based on the matrix impulse response of the multi-input multi-output (MIMO) time-invariant representation of periodic filter as one that minimizes the sum of equation errors of a set of over-determined linear equations. It is shown that the problem is equivalent to a set of least squares problems and a simple closed-form solution is obtained Numerical examples are used to illustrate the performance of the proposed FIR approximate inverse.
URI: http://hdl.handle.net/11536/18192
ISSN: 1520-6149
期刊: 2004 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOL II, PROCEEDINGS: SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING SIGNAL PROCESSING THEORY AND METHODS
起始頁: 45
結束頁: 48
顯示於類別:會議論文