标题：WLS design of centro-symmetric 2-D FIR filters using matrix iterative algorithm
作者机构：[Zhao, Ruijie ] School of Mechanical, Electrical and Information Engineering, Shandong University, Weihai, China
会议名称：IEEE International Conference on Digital Signal Processing, DSP 2015
会议日期：July 21, 2015 - July 24, 2015
来源：International Conference on Digital Signal Processing, DSP
摘要：The weighted least squares (WLS) design problem of two-dimensional (2-D) FIR filters with centro-symmetric response is considered in this paper. Its optimality condition is given and expressed as a pair of matrix equations, which involves two matrix variables, i.e., the coefficients of filters to be determined. Then, based on the optimality condition, a matrix iterative algorithm is developed to solve the design problem and its convergence is established using linear operator theory. Because the coefficients of filters are in their natural matrix forms in the algorithm, great savings in computations and memory space required are achieved. Finally, a design example and comparisons with existing methods are provided to illustrate the effectiveness and efficiency of the proposed algorithm.
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