Mitigation of cross-eye jamming using a dual-polarization array

doi:10.21629/JSEE.2018.03.06

Journal of Systems Engineering and Electronics ›› 2018, Vol. 29 ›› Issue (3): 491-498.doi: 10.21629/JSEE.2018.03.06

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Mitigation of cross-eye jamming using a dual-polarization array

Jiazhi MA¹(), Longfei SHI^1,*(), Shunping XIAO¹(), Xuesong WANG^1,²()

¹ State Key Laboratory of Complex Electromagnetic Environmental Effects on Electronics and Information System, National University of Defense Technology, Changsha 410073, China
² School of Science, National University of Defense Technology, Changsha 410073, China

Received:2017-07-31 Online:2018-06-28 Published:2018-07-02
Contact: Longfei SHI E-mail:jzmanudt@163.com;shi@sina.com;xiaoshunping@nudt.edu.cn;wxs1019@vip.sina.com
About author:MA Jiazhi received his B.E. and M.E. degrees in control engineering from the Aviation University, Changchun, China, in 2010 and 2013, respectively. He is currently earning his Ph.D. degree from National University of Defense Technology. His current research interests include radar signal processing and radar polarimetry. E-mail: jzmanudt@163.com|SHI Longfei received his B.E. and Ph.D. degrees in electronic engineering from National University of Defense Technology (NUDT), Changsha, China, in 2002 and 2007, respectively. He is an associate professor at NUDT. His current research interests include digital signal processing and radar polarimetry. E-mail: longfei shi@sina.com|XIAO Shunping received his B.E. and Ph.D. degrees in electronic engineering from National University of Defense Technology (NUDT), Changsha, China, in 1986 and 1995, respectively. He is a professor at NUDT. His current research interests include polarimetric radar information processing. E-mail: xiaoshunping@nudt.edu.cn|WANG Xuesong received his B.E. and Ph.D. degrees in electronic engineering from National University of Defense Technology (NUDT), Changsha, China, in 1994 and 1999, respectively. He is a professor at NUDT. His current research interests include polarimetric radar information processing and target recognition. E-mail: wxs1019@vip.sina.com
Supported by:
the National Natural Science Foundation of China(61490692);the National Natural Science Foundation of China(61401488);This work was supported by the National Natural Science Foundation of China (61490692; 61401488)

Abstract

Abstract:

This paper presents an approach for mitigating the cross-eye jamming using a dual-polarization array. By transmitting a sum beam and a difference beam in two orthogonal polarimetric channels, a synthesized transmitted beam with spatially varying polarization is produced, such that the polarization of the transmitted radar wave varies in azimuth or elevation. Thus, the phases of the signals received on the two antennas of a cross-eye jammer become unequal, and an additional phase difference is introduced to disrupt the 180° phase shifting in the retrodirective loop of the jammer. By means of beam scanning in a small angular range, the optimal beam steering configuration can be found to maximize the phase error for the mitigation of cross-eye jamming. As a result, the jamming performance of the cross-eye jammer degrades largely. Theoretical analysis and simulation results indicate that the proposed method is valid and feasible.

Key words: cross-eye jamming, monopulse radar, spatially varying polarization, insertion phase, beam scanning.

Jiazhi MA, Longfei SHI, Shunping XIAO, Xuesong WANG. Mitigation of cross-eye jamming using a dual-polarization array[J]. Journal of Systems Engineering and Electronics, 2018, 29(3): 491-498.

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Mitigation of cross-eye jamming using a dual-polarization array

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