This article is part of the series Radar Space-Time Adaptive Processing.

Open Access Research Article

Mainlobe Jammer Nulling via TSI Finders: A Space Fast-Time Adaptive Processor

Dan Madurasinghe* and Andrew P Shaw

Author Affiliations

Electronic Warfare and Radar Divison, Defence Science and Technology Organisation, P.O. Box 1500, Edinburgh, SA 5111, Australia

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EURASIP Journal on Advances in Signal Processing 2006, 2006:048789  doi:10.1155/ASP/2006/48789


The electronic version of this article is the complete one and can be found online at: http://asp.eurasipjournals.com/content/2006/1/048789


Received: 17 October 2004
Revisions received: 21 March 2005
Accepted: 31 May 2005
Published: 23 January 2006

© 2006 Madurasinghe and Shaw

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

An algorithm based on a space fast-time adaptive processor is presented for nulling the mainlobe jammer when the jammer and the target of interest share the same bearing. The computational load involved in the conventional processor, which blindly looks for the terrain-scattered interference (TSI), is required to stack a large number of consecutive range cell returns to form the space fast-time data snapshot making it almost impossible to implement in real time. This issue is resolved via the introduction of a preprocessor (a TSI finder which detects the presence of the minute levels of multipath components of the mainlobe jammer and associated time delays) which directs the STAP processor to select only two desired range returns in order to form the space fast-time data snapshot. The end result is a computationally extremely fast processor. Also a new space fast-time adaptive processor based on the super-resolution approach (eigenvector-based) is presented.

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