Passive location method and accuracy analysis with phase difference rate measurements

Author

Deng, X.-P. ; Liu, Z. ; Jiang, W.-L. ; Zhou, Y.-Y. ; Xu, Y.-W.

Author_Institution

Nat. Univ. of Defense Technol., Changsha, China

Volume

148

Issue

5

fYear

2001

fDate

10/1/2001 12:00:00 AM

Firstpage

302

Lastpage

307

Abstract

The interferometer is the traditional instrument used to find the direction of an emitter by measuring the phase difference of arrival of its RF emissions. Bearings-only motion analysis indicates that an observer with these direction measurements can locate the position of the emitter in a period of time. A novel passive location method is introduced with phase difference and phase difference rate measurements with the interferometer mounted on a moving observer. The accuracy of a passive location system with these measurements is analysed. The results show a significantly improved performance compared with the traditional method

Keywords

direction-of-arrival estimation; measurement errors; observers; phase measurement; radio direction-finding; radio tracking; radiowave interferometers; RF emissions; bearings-only motion analysis; direction measurements; emitter direction finding; interferometer; location system accuracy analysis; moving observer; passive location method; phase difference measurement; phase difference rate measurements; short-time measurements;

fLanguage

English

Journal_Title

Radar, Sonar and Navigation, IEE Proceedings -

Publisher

iet

ISSN

1350-2395

Type

jour

DOI

10.1049/ip-rsn:20010540

Filename

963395