Performance Analysis of Beam Error Parasitic Loop of Phased Array Radar Seeker

doi:10.23940/ijpe.18.11.p21.27522759

Int J Performability Eng ›› 2018, Vol. 14 ›› Issue (11): 2752-2759.doi: 10.23940/ijpe.18.11.p21.27522759

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Performance Analysis of Beam Error Parasitic Loop of Phased Array Radar Seeker

Jing Yu^a, Zhiyi Lu^a, Xiangping Li^a, Qi Chen^a, and Xiaohai Zou^{b, *}

^a College of Coast Defence Arm, Navy Aviation University, Yantai, 264001, China;
^b College of Weapons Engineering, Naval University of Engineering, Wuhan, 430033, China

Submitted on ;
Contact: * E-mail address: lzyydhcgd@163.com
About author:Jing Yu received the Bachelor degree from Shandong University, Jinan, China, in 2002, the Master degree from Naval Aeronautical Engineering Institute, Yantai, China, in 2010 and is studying Ph.D. degree while works as a lecture of the College of Coast Defence Arm, Navy Aviation University, Yantai, China. Her current research interests include target detection, signal processing and Bistatic SAR interference.Zhiyi Lu is a Master's student in the College of Coast Defence Arm at Navy Aviation University, Yantai, China. His research interests include precision guidance and target detection.Xiangping Li received his bachelor's degree from Beijing Institute of Technology, Beijing, China, in 1986 and his Master's degree and Ph.D. from Naval Aeronautical Engineering Institute, Yantai, China in 1989 and 1994, respectively. He is currently a professor in the College of Coast Defence Arm at Navy Aviation University. His current research interests include precision guidance, target detection, and signal processing. Qi Chen received his bachelor's degree from Ocean University of China, Qingdao, China, in 2011 and his Master's degree from Naval Aeronautical Engineering University in 2014. He is currently a Ph.D. student in the College of Coast Defence Arm at Navy Aviation University. His research interests include precision guidance and target detection.Xiaohai Zou received his bachelor's degree from National University of Defence Technology, Changsha, China, in 2006 and his Master's degree and Ph.D. from National University of Defence Technology, Changsha, China in 2009 and 2013, respectively. He is currently a lecturer in the College of Weapons Engineering at Naval University of Engineering, Wuhan, China. His research interests include target detection, signal processing, and Bistatic SAR interference.

Abstract

Abstract: For the parasitic loop problem caused by beam errors of phased array radar seekers, a beam error parasitic loop model is established. The concept of beam error slope is put forward, and thus the corresponding closed-loop transfer function of parasitic loop model is deduced. Through the Routh criterion, the stability domain of a parasitic loop is determined. The performance of the parasitic loop is analyzed from the time domain and frequency domain, and the guidance parameters that influence the stability of parasitic loops are given. It shows that the stability of parasitic loops is influenced by missile flight attitude and guidance time. Additionally, it was found that the influence of dynamic link order in parasitic loop positive feedback is much smaller than that in parasitic loop negative feedback, but it is more sensitive to the amplitude of beam error slope and more easily unstable. This provides a theoretical basis for industrial design in the future and plays an important role in improving the performance of missiles.

Key words: phased array radar seeker, slope of beam error, parasitic loop, performance analysis, stability

Jing Yu, Zhiyi Lu, Xiangping Li, Qi Chen, and Xiaohai Zou. Performance Analysis of Beam Error Parasitic Loop of Phased Array Radar Seeker [J]. Int J Performability Eng, 2018, 14(11): 2752-2759.

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Performance Analysis of Beam Error Parasitic Loop of Phased Array Radar Seeker

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