Measurement and modelling of bistatic radar sea clutter
Date
2010
Authors
Griffiths, H D
Al-Ashwal, W.A.
Ward, K.D.
Tough, R.J.A
Baker, Christopher
Woodbridge, Karl
Journal Title
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Volume Title
Publisher
Institution of Engineering and Technology (IET)
Abstract
Bistatic radar is a subject of considerable present interest. Despite this, current understanding of the properties of bistatic clutter, and in particular, bistatic sea clutter, is limited at best. The purpose of this study is to present an analysis of the limited existing published radar data and to derive an empirical model, which expresses the variation of mean σ0 with the measurement geometry and sea conditions. This empirical model is then compared with electromagnetic (EM) scattering calculations using the composite model (sometimes called the two-scale model) to show the extent to which the EM model is able to reproduce the trends observed in the data. The results indicate where improvements to bistatic EM modelling are required (very low grazing angles and out-of-plane scattering), and a general need for more radar data to extend the empirical σ0 model and expand it to the bistatic clutter statistics.
Description
Keywords
Keywords: Bistatic; Bistatic radars; Clutter statistics; Composite models; Empirical model; Low grazing angles; Measurement geometry; Out-of-plane; Radar data; Scattering calculations; Sea clutters; Two-scale model; Dielectric properties; Radar; Radar clutter; Rada
Citation
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Source
IET Radar, Sonar & Navigation
Type
Journal article
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2037-12-31