运动单站干涉仪相位差直接定位方法
收稿日期: 2012-11-07
修回日期: 2013-05-17
网络出版日期: 2013-05-27
基金资助
国防科技重点实验室基金(9140C860304);国家"863"计划(2011AA7072043,2011AA7072048)
A Single Moving Observer Direct Position Determination Method Using Interferometer Phase Difference
Received date: 2012-11-07
Revised date: 2013-05-17
Online 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)
张敏 , 郭福成 , 周一宇 , 姚山峰 . 运动单站干涉仪相位差直接定位方法[J]. 航空学报, 2013 , 34(9) : 2185 -2193 . DOI: 10.7527/S1000-6893.2013.0260
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.
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