Locally robust array detectors for random signals
- 1 May 1978
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Information Theory
- Vol. 24 (3) , 309-316
- https://doi.org/10.1109/tit.1978.1055888
Abstract
Detection of random signals in arrays of receivers is considered when the exact distribution of the additive noise is not known. Locally robust correlator-type test statistics are obtained for weak-signal detection, for multivariate array noise densities in classes described by three different extensions of the univariate Tukey-Huber contaminated nominal density model. The robust correlator nonlinearities are shown to he of the form previously derived for known signal detection. In addition to robust correlator-type statistics, a quadratic-limiter-sum detector is investigated for robust performance in contaminated Ganssian noise.Keywords
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