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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2013, Vol. 34 ›› Issue (9): 2185-2193.doi: 10.7527/S1000-6893.2013.0260

• Electronics and Control • Previous Articles     Next Articles

A Single Moving Observer Direct Position Determination Method Using Interferometer Phase Difference

ZHANG Min1, GUO Fucheng1, ZHOU Yiyu1, YAO Shanfeng2   

  1. 1. College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China;
    2. National Defense Key Laboratory on Blind Signal Processing, Southwest Electronics and Telecommunication Technology Research Institute, Chengdu 610041, China
  • Received:2012-11-07 Revised:2013-05-17 Online:2013-09-25 Published:2013-05-27
  • Supported by:

    National Defense Key Laboratory Foundation of China (9140C860304);National High-tech Research and Development Program of China (2011AA7072043, 2011AA7072048)

Abstract:

Due to the performance degradation under low SNR and complexity structures for multiple frequency bands using multi-channel phase interferometers, a novel single moving observer localization method for static ground emitter directly using interferometer ambiguous phase differences (PD) is proposed. To make use of the geometry characteristic of the PDs, a multiple bearing range parameterized Gaussian mixture filter (MB-RP-GMF) is advanced. Phase difference error is detected to get a set of initial azimuths and then the range parameterized method is used to attain Gaussian mixtures. The emitter position is then estimated by the extended Kalman filter (EKF) banks. Simulation results show this method outperforms the traditional bearing-only (BO) methods under low SNRs; one set of baselines can be adapted for the multiple frequency band sources.

Key words: passive localization, single observer, interferometer, phase difference, kalman filter, gaussian mixture, range parameterized method

CLC Number: