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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3178

Title: Improved covariance matrix estimation in spectrally inhomogeneous sea clutter with application to adaptive small boat detection.
Authors: Herselman, PL
De Wind, HJ
Keywords: Covariance matrix
Sea clutter
Spectral inhomogeneity
Radar
Issue Date: Sep-2008
Citation: Herselman, PL and De Wind, HJ. 2008. Improved covariance matrix estimation in spectrally inhomogeneous sea clutter with application to adaptive small boat detection. International Conference on Radar, Adelaide, Australia, 2 - 5 September, pp 6
Abstract: Asymptotically optimal coherent detection techniques yield sub-clutter visibility in heavy-tailed sea clutter. The adaptive linear quadratic detector inherently assumes spectral homogeneity for the reference window of the covariance matrix estimator. This paper investigates the validity of this assumption on real data that have been recorded with medium resolution X-band radar. Proving empirically that this basic assumption is the exception rather than the rule, the effects of spectral in homogeneity are investigated. Various improvements to the current estimator and detector are suggested and evaluated. This is specifically applied to the detection of small rigid inflatable boats, with empirical results presented for a range of boat manoeuvres. A specific example highlights the vulnerability of the chosen detector to self-masking
Description: International Conference on Radar, Adelaide, Australia, 2 - 5 September 2008
URI: http://hdl.handle.net/10204/3178
ISBN: 9781424423217
Appears in Collections:Radar and electronic warfare systems
General science, engineering & technology

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