標題: Optimal finite impulse response approximate inverse of linear periodic filters
作者: Wu, JY
Lin, CA
電控工程研究所
電信工程研究所
Institute of Electrical and Control Engineering
Institute of Communications Engineering
公開日期: 1-Apr-2006
摘要: A method to construct an optimal finite impulse response (FIR) approximate inverse for discrete-time causal FIR periodic filters in the presence of measurement noise is proposed. The objective function to be minimised is the sum-of-mean-square errors over one period. On the basis of the matrix impulse response of the multi-input multi-output time-invariant representation of periodic filters, the optimisation problem is formulated as one that minimises the summed 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 from which a simple, closed-form solution is obtained. Numerical examples are used to illustrate the performance of the proposed FIR approximate inverse.
URI: http://dx.doi.org/10.1049/ip-vis:20045118
http://hdl.handle.net/11536/12437
ISSN: 1350-245X
DOI: 10.1049/ip-vis:20045118
期刊: IEE PROCEEDINGS-VISION IMAGE AND SIGNAL PROCESSING
Volume: 153
Issue: 2
起始頁: 141
結束頁: 148
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