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An iterative algorithm for the design of 2-D nonseparable diamond-shaped filter banks

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3 Author(s)
Xu, H. ; Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada ; Lu, W.-S. ; Antoniou, A.

An iterative method for the design of two-dimensional (2-D) nonseparable diamond-shaped filter banks is proposed. Matrix techniques are used to re-formulate a least-squares objective function as a standard fourth-order function of the filter coefficients. A linearization procedure is then applied to obtain a modified quadratic objective function. As a result, the major step in the iterative algorithm proposed is to minimize a standard unconstrained quadratic function, which can be done with high computation efficiency. Compared with other existing design methods, our method is a direct approach that entails more flexibility in achieving design specifications and improved computational efficiency, as is demonstrated by design examples

Published in:

Circuits and Systems, 1994., Proceedings of the 37th Midwest Symposium on  (Volume:2 )

Date of Conference:

3-5 Aug 1994

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