Data fusion of target characteristic in multistatic passive radar

doi:10.23919/JSEE.2021.000070

Journal of Systems Engineering and Electronics ›› 2021, Vol. 32 ›› Issue (4): 811-821.doi: 10.23919/JSEE.2021.000070

• ELECTRONICS TECHNOLOGY • Previous Articles Next Articles

Data fusion of target characteristic in multistatic passive radar

Xiaomao CAO¹(), Jianxin YI^1,*(), Ziping GONG¹(), Yunhua RAO^1,²(), Xianrong WAN^1,*()

¹ School of Electronic Information, Wuhan University, Wuhan 430072, China
² Shenzhen Research Institute, Wuhan University, Shenzhen 518057, China

Received:2020-11-26 Online:2021-08-18 Published:2021-09-30
Contact: Jianxin YI,Xianrong WAN E-mail:cao_xm@whu.edu.cn;jxyi@whu.edu.cn;zpgong@whu.edu.cn;ryh@whu.edu.cn;xrwan@whu.edu.cn
About author:|CAO Xiaomao was born in 1990. He received his B.E. degree in radio wave propagation and antenna from Wuhan University, in which he is pursuing his Ph.D. degree. His research interests are wideband antenna design and automatic target recognition. E-mail: cao_xm@whu.edu.cn||YI Jianxin was born in 1989. He received his B.E. degree in electrical and electronic engineering, and his Ph.D. degree in radio physics from Wuhan University in 2011 and 2016, respectively. From August 2014 to August 2015, he was a visiting Ph.D. student at the University of Calgary. He is currently an associate professor with the School of Electronic Information, Wuhan University. His main research interests include radar signal processing, target tracking, and information fusion.E-mail: jxyi@whu.edu.cn||GONG Ziping was born in 1977. He received his B.E. degree and Ph.D. degree in radio physics from Wuhan University in 1999 and 2007 respectively. He is currently a lecturer with the School of Electronic Information, Wuhan University. His research interests include electromagnetic wave propagation, electromagnetic field simulation, and radio ocean remote sensing. E-mail: zpgong@whu.edu.cn||RAO Yunhua was born in 1972. He received his B.E. degree from Harbin Engineering University in 1995, and his Master’s degree and Ph.D. degree from Huazhong University of Science and Technology in 2000 and 2004 respectively. He is currently an associate professor with the School of Electronic Information, Wuhan University. His research interests include design of new radar system and wireless communication network. E-mail: ryh@whu.edu.cn||WAN Xianrong was born in 1975. He received his B.E. degree in electrical and electronic engineering from the former Wuhan Technical University of Surveying and Mapping in 1997, and his Ph.D. degree in radio physics from Wuhan University in 2005. He is currently a professor and a Ph.D. candidate supervisor with the School of Electronic Information, Wuhan University. He hosted and participated in more than 10 national research projects and published more than 80 academic papers. His main research interests include design of new radar systems such as passive radars and over-the-horizon radars, and array signal processing. E-mail: xrwan@whu.edu.cn
Supported by:
This work was supported by the National Natural Science Foundation of China (61931015; 62071335), the Science and Technology Program of Shenzhen (JCYJ20170818112037398), and the Technological Innovation Project of Hubei Province of China (2019AAA061)

Abstract

Abstract:

Radar cross section (RCS) is an important attribute of radar targets and has been widely used in automatic target recognition (ATR). In a passive radar, only the RCS multiplied by a coefficient is available due to the unknown transmitting parameters. For different transmitter-receiver (bistatic) pairs, the coefficients are different. Thus, the recovered RCS in different transmitter-receiver (bistatic) pairs cannot be fused for further use. In this paper, we propose a quantity named quasi-echo-power (QEP) as well as a method for eliminating differences of this quantity among different transmitter-receiver (bistatic) pairs. The QEP is defined as the target echo power after being compensated for distance and pattern propagation factor. The proposed method estimates the station difference coefficients (SDCs) of transmitter-receiver (bistatic) pairs relative to the reference transmitter-receiver (bistatic) pair first. Then, it compensates the QEP and gets the compensated QEP. The compensated QEP possesses a linear relationship with the target RCS. Statistical analyses on the simulated and real-life QEP data show that the proposed method can effectively estimate the SDC between different stations, and the compensated QEP from different receiving stations has the same distribution characteristics for the same target.

Key words: data fusion, multistatic passive radar, radar cross section (RCS), target characteristic

Xiaomao CAO, Jianxin YI, Ziping GONG, Yunhua RAO, Xianrong WAN. Data fusion of target characteristic in multistatic passive radar[J]. Journal of Systems Engineering and Electronics, 2021, 32(4): 811-821.

Figures/Tables 13

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Data fusion of target characteristic in multistatic passive radar

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