Passive location method and accuracy analysis with phase difference rate measurements

• DOI: 10.1049/ip-rsn:20010540
• Publication Date: 2002-07-26T11:01:10Z
• Authors: X.-P. Deng; Z. Liu; W.-L. Jiang; Y.-Y. Zhou; Y.-W. Xu
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology; 7. Clean energy

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.