Moving target detection in over-the-horizon radar using adaptive chirplet transform

doi:doi:10.1029/2002RS002621

Abstract

Cited By (1)

Abstract

Moving target detection in over-the-horizon radar using adaptive chirplet transform

Genyuan Wang

Department of Electrical and Computer Engineering, University of Delaware, Newark, Delaware, USA

Xiang-Gen Xia

Department of Electrical and Computer Engineering, University of Delaware, Newark, Delaware, USA

Benjamin T. Root

Radar Division, Naval Research Laboratory, Washington, D. C., USA

Victor C. Chen

Radar Division, Naval Research Laboratory, Washington, D. C., USA

In over-the-horizon radar (OTHR) moving target detection, the signal to clutter ratio (SCR) is low for slow targets near the clutter, such as ships. One method to detect a moving target is to first reject the clutter and improve the SCR before the detection, such as the adaptive Fourier transform developed by Root [1998a , 1998b, 1998c] when a target moves uniformly. When a target does not move uniformly, the Fourier-based techniques for the target detection including superresolution techniques may not work well. In this paper, we propose an adaptive chirplet transform technique in the Doppler processing in OTHR as an alternative of the Fourier transform technique when a target moves nonuniformly.

Received 25 February 2002; accepted 25 April 2003; published 1 July 2003.

Citation: Wang, G., X.-G. Xia, B. T. Root, and V. C. Chen (2003), Moving target detection in over-the-horizon radar using adaptive chirplet transform, Radio Sci., 38(4), 1062, doi:10.1029/2002RS002621.

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