Efficient realizations of two-dimensional quadratic digital filters
- 1 May 1989
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Acoustics, Speech, and Signal Processing
- Vol. 37 (5) , 765-768
- https://doi.org/10.1109/29.17572
Abstract
Realization structures of two-dimensional finite-support quadratic digital filters which are based on matrix decomposition are introduced. The resulting structures consist generally of a number of parallel branches which operate simultaneously and independently on a common input array. By proper decomposition of the coefficient matrix, each parallel branch can be realized by a two-dimensional finite impulse-response digital filter in cascade with a squaring operator. The lower-upper triangular decomposition and the singular value lower-upper decomposition is used in order to arrive at efficient structures with computational and hardware advantages.Keywords
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