Robust Signal Detection Using Order Statistic Prefilters

Yong-Hwan LEE  Seung-Jun KIM  

IEICE TRANSACTIONS on Communications   Vol.E81-B   No.3   pp.520-524
Publication Date: 1998/03/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Switching and Communication Processing
robust detection,  median filter,  non-parametric detector,  

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We propose a robust detection scheme by employing an order statistic filter as a preprocessor of the input signal. For ease of design, the variance of the order statistic filtered output is modeled by proposing an approximate upper bound. The detector is analytically designed using a fixed sample size (FSS) test scheme. The performance of the proposed detector is compared to that of other robust detectors in terms of the sample size required for given false alarm and miss detection probabilities. Finally, analytical results are verified by computer simulation.