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A modified Gaussian sum approach to estimation of non-Gaussian signals

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2 Author(s)
M. J. Caputi ; Dept. of Eng., Hofstra Univ., Hempstead, NY, USA ; R. L. Moose

A Gaussian sum estimation algorithm has previously been developed to deal with noise processes that are non-Gaussian. Inherent in this algorithm is a serious growing memory problem that causes the number of terms in the Gaussian sum to increase exponentially at each iteration. A modified Gaussian sum estimation algorithm using an adaptive filter is developed that avoids the growing memory problem of the previous algorithm while providing effective state estimation. The adaptive filter is comprised of a fixed set of estimators operating in parallel with each individual estimate possessing its own corresponding weighting term. A simulation example illustrates the new non-Gaussian estimation technique

Published in:

IEEE Transactions on Aerospace and Electronic Systems  (Volume:29 ,  Issue: 2 )