Journal of Systems Engineering and Electronics ›› 2018, Vol. 29 ›› Issue (2): 269-277.doi: 10.21629/JSEE.2018.02.07

• Defence Electronics Technology • Previous Articles     Next Articles

Deceptive jamming suppression in multistatic radar based on coherent clustering

Ahmed ABDALLA*(), Mohaned Giess Shokrallah AHMED(), Yuan ZHAO(), Ying XIONG(), Bin TANG()   

  • Received:2016-12-13 Online:2018-04-26 Published:2018-04-27
  • Contact: Ahmed ABDALLA E-mail:ahmed.baoney6@hotmail.com;2258042252@qq.com;zy_uestc@outlook.com;xiongy@uestc.edu.cn;bint@uestc.edu.cn
  • About author:ABDALLA Ahmed was born in 1982. He received his B.S. degree in electrical engineering from Karary University in 2005, Khartoum Sudan and M.S. degree in electronic engineering, information and signal processing from University of Electronic Science and Technology of China in 2013, Chengdu, China. He is currently working toward his Ph.D. degree in electronic engineering from University of Electronic Science and Technology of China. His current research interests include radar countermeasure and radar signal processing. E-mail: ahmed.baoney6@hotmail.com|AHMED Mohaned Giess Shokrallah was born in 1987. He received his B.S. degree in electrical engineering from Karary University in 2009, Khartoum Sudan and M.S. degree in electronic engineering, information and signal processing from University of Electronic Science and Technology of China in 2013, Chengdu, China. He is currently working toward his Ph.D. degree in electronic engineering from University of Electronic Science and Technology of China. His current research interests include radar countermeasure and radar signal processing. E-mail: 2258042252@qq.com|ZHAO Yuan was born in 1991. He received his B.S. degree in electronic engineering from University of Electronic Science and Technology of China in 2013, Chengdu, China. He is currently working toward his Ph.D. degree in radar network antijamming from University of Electronic Science and Technology of China. His current research interests include radar network and information fusion. E-mail: zy_uestc@outlook.com|XIONG Ying was born in 1967. She is currently a professor at the School of Electronic Engineering, University of Electronic Science and Technology of China. Her research interests include electronic scout and countermeasure, digital signal processing, and wireless communications. E-mail: xiongy@uestc.edu.cn|TANG Bin was born in 1964. He received his Ph.D. degree from University of Electronic Science and Technology of China (UESTC). He is currently a professor at the School of Electronic Engineering, UESTC. His research interests include electronic scout and countermeasure, digital signal processing, and wireless communications. E-mail: bint@uestc.edu.cn

Abstract:

This paper proposes a suppression method of the deceptive false target (FT) produced by digital radio frequency memory (DRFM) in a multistatic radar system. The simulated deceptive false targets from DRFM cannot be easily discriminated and suppressed with traditional radar systems. Therefore, multistatic radar has attracted considerable interest as it provides improved performance against deception jamming due to several separated receivers. This paper first investigates the received signal model in the presence of multiple false targets in all receivers of the multistatic radar. Then, obtain the propagation time delays of the false targets based on the cross-correlation test of the received signals in different receivers. In doing so, local-density-based spatial clustering of applications with noise (LDBSCAN) is proposed to discriminate the FTs from the physical targets (PTs) after compensating the FTs time delays, where the FTs are approximately coincident with one position, while PTs possess small dispersion. Numerical simulations are carried out to demonstrate the feasibility and validness of the proposed method.

Key words: multistatic radar, clustering analysis, electronic counter-countermeasure (ECCM), deceptive jamming