Localization deception performance of FDA signals under passive bi-satellite reconnaissance  

作　　者：Haoliang GUAN Shunsheng ZHANG Wen-Qin WANG 

机构地区：[1]Research Institute of Electronic Science and Technology,University of Electronic Science and Technology of China,Chengdu 611731,China [2]School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China

出　　处：《Science China(Information Sciences)》2021年第9期208-219,共12页中国科学（信息科学）（英文版）

摘　　要：Time difference of arrival(TDOA) and frequency difference of arrival(FDOA) are widely adopted for passive bi-satellite positioning system(BPS) localization. Although TDOA/FDOA localization countermeasures have received much attention, different from existing passive localization countermeasure techniques which mainly concentrate on designing spoofing jammers, this paper proposes that the application of frequency diverse array(FDA) antenna has more advantages in achieving localization deception compared with phased array(PA) antenna. FDA uses a small frequency offset across its array elements, which makes periodical time-variance beampattern even at a fixed angle and distance. Followed by this new method,closed-form expressions for the geometric dilution of precision(GDOP) and Cramer-Rao bounds(CRB) are derived to quantitatively evaluate the localization deception performance of the FDA transmitted signals.Both numerical analysis and simulation results show that FDA indeed provides robust localization deception performance compared with conventional phased-array under passive bi-satellite reconnaissance.

关 键 词：localization deception passive bi-satellite reconnaissance frequency diverse array(FDA) Cramer-Rao bound(CRB) time difference of arrival(TDOA) frequency difference of arrival(FDOA) 

分 类 号：TN971[电子电信—信号与信息处理]