NDLI: 3D AOA/TDOA emitter location by integrated passive radar/GPS/INS systems

Content Provider	IEEE Xplore Digital Library
Author	Wenhua Li Peiguo Liu
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China (Wenhua Li; Peiguo Liu)
Abstract	3D passive geolocation of radar emitters is an important problem in electronic support for military surveillance. The angle of arrivals (AOA) and time difference of arrivals (TDOA) are two popular schemes for passive emitter location. In this paper, a location scheme is proposed based on fusion of AOA and TDOA measurements from two electronic support measures (ESM) sensors installed on two moving platforms, respectively. The sensor positions, velocities, and platform attitudes are estimated by loosely-coupled GPS/INS systems. AOA and TDOA measurement equations are formed by AOA and the time of arrivals (TOA) measurements of the ESM sensors and the platform positions and attitudes. Least-squares (LS) is proposed to fuse AOA measurements from two ESMs, and its estimation is used as the initialization of the iterative LS (ILS) method for fusing both AOA and TDOA measurements. Experimental results show that the location accuracy of the radar emitter can be improved effectively by this AOA/TDOA fusion method.
Starting Page	121
Ending Page	124
File Size	587759
Page Count	4
File Format	PDF
ISBN	0780390059
DOI	10.1109/IWVDVT.2005.1504566
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-28
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Passive radar Time difference of arrival Fuses Surveillance Position measurement Sensor fusion Time measurement Sensor systems Equations Global Positioning System
Content Type	Text
Resource Type	Article

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