A New Method of the Virtual TDOA Estimation for the Passive Radar Source Localization Based on PSAAA

被引:0
作者
Wan, Pengwu [1 ]
Li, Zan [1 ]
Hao, Benjian [1 ]
Liu, Boyang [1 ]
Zhu, Jianfeng [2 ]
机构
[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China
[2] Sci & Technol Commun Informat Secur Control Lab, Jiaxing 314033, Zhejiang, Peoples R China
来源
2016 8TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS & SIGNAL PROCESSING (WCSP) | 2016年
关键词
Passive Localization; Virtual Time Differences of Arrival; Passive Synthetic Aperture Antenna Array; Curve Fitting; Radar; TIME DIFFERENCE; ARRIVAL;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The passive synthetic aperture antenna array (P-SAAA) technology is inspired by the idea of synthetic aperture sonar and synthetic aperture radar, which is a new method used to the passive radar source localization using only one small aircraft. Virtual time difference of arrival (VTDOA) estimation is critical for the PSAAA technology, it is defined as the time difference of the radar pulse transmission from the radar source position to different virtual receivers, where the virtual receivers are the flight track position of the small aircraft at different flight time. In this paper, we present three different algorithms of curve fitting to approximate the main-beam pattern of the radar antenna, then the VTDOA can be estimated using the corresponding time of the peak of the curve. The simulation results show that the second-order polynomial of the least squares (LS) curve fitting algorithm is the optimal method to approximate the main beam pattern of the radar antenna at the receiver, which also is the optimal method to be used in the VTDOA estimation.
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页数:6
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