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International Journal of Antennas and Propagation
Volume 2017, Article ID 2345491, 8 pages
https://doi.org/10.1155/2017/2345491
Research Article

Adaptive Countering Technique for Angle Deception Based on Dual Polarization Radar Seeker

College of Air Traffic Management, Civil Aviation Flight University of China, Guanghan 618307, China

Correspondence should be addressed to Qiang Zhang; moc.621@eoi_gnaiqgnahz

Received 27 December 2016; Revised 1 April 2017; Accepted 2 May 2017; Published 22 May 2017

Academic Editor: Pierfrancesco Lombardo

Copyright © 2017 Qiang Zhang and Weijun Pan. 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.

Abstract

Angle deception jamming makes the monopulse radar seeker track to itself but not the real target, which is catastrophic for the guidance radar. In this paper, an adaptive technique based on dual polarization radar is presented to counter it. How angle deception jamming acts on the monopulse tracking radar is first investigated. An angle estimation technique of the real target is then derived from the conventional monopulse method, although it is being interfered with by angle deception jamming. Meanwhile, the polarization ratio characteristic of the angle deception jamming could be adaptively estimated in current practical scene. Furthermore, the similar characteristic of Jones vectors is defined as the rule to judge whether the target is being interfered with by jamming. It can make the radar seeker select different techniques for angle estimation adaptively. Finally, two major factors of angle estimation accuracy are analyzed by simulation and the effectiveness of the proposed technique is proved through experiments.