Design of 1-D and 2-D fir digital filters with complex coefficients using a least-squares approach

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Department of Electrical Engineering, University of Ottawa, 161 Louis Pasteaur St., Ottawa, Ont. K1N 6N5, Canada [1 ]
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Comput Electr Eng | / 4卷 / 273-281期
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An approach for the design of 1-D and 2-D FIR digital filters with complex coefficients is presented. In this approach, the error measure is formulated as a quadratic function and the filter coefficients are obtained by solving a set of linear equations. The proposed approach is more efficient than the eigenfilter approach regarding the amount of computation and design time. Moreover, the proposed approach leads to smaller least-squares errors. Design examples are included to illustrate the advantages of the approach. © 1997 Elsevier Science Ltd.
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