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Algebraic approach to two-dimensional recursive digital filter synthesis

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2 Author(s)
Cadzow, James A. ; Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA ; Chen, T.-C.

An effective algorithm is developed for synthesizing two-dimensional recursive digital filters which approximate prescribed ideal frequency response specifications. The algorithm is based on an algebraic approach that uses the eigenvalue-eigenvector decomposition of the ideal filter's excitation-response matrix in conjunction with a recently developed signal-enhancement method. This results in a recursive filter which has a unit impulse that closely approximates the ideal filter's unit-impulse response. Illustrative examples and comparisons to an existing technique are included.<>

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Acoustics, Speech and Signal Processing, IEEE Transactions on  (Volume:37 ,  Issue: 5 )