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An efficient matrix-based algorithm for the WLS design of 2-D FIR filters with centrally symmetric or antisymmetric response

Authors: Ruijie Zhao; Xiaoying Hong;

An efficient matrix-based algorithm for the WLS design of 2-D FIR filters with centrally symmetric or antisymmetric response

Abstract

A new matrix-based algorithm is presented for the weighted least squares (WLS) design problem of two-dimensional (2-D) finite impulse response (FIR) filters with centrally (anti)symmetric response. Firstly, the optimality condition of such optimization problem is obtained and expressed as a pair of matrix equations involving two matrix variables. Then, by introducing a parameter, we develop a matrix-based iterative algorithm to solve the optimality condition equations. Further, the convergence of the algorithm is established by using linear operators theory. Because matrix iterative operations are used and the coefficients of filters are in their natural matrix forms, great savings in computations and memory space required are achieved. Finally, a design example and comparisons to existing methods are provided to illustrate the effectiveness and efficiency of the proposed algorithm.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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