一种多参考接收站下的时差定位算法

doi:10.3969/j.issn.1001-2400.2014.04.006

Abstract

Abstract:

A new algorithm based on multi-reference receivers for the passive location from time difference of arrival (TDOA) is proposed. The proposed algorithm first transforms the nonlinear TDOA equations into a set of pseudo-linear equations of the emitter position, and then the weighted least squares algorithm is applied to obtain the initial solution. By taking the relationship among the entries of the initial solution into account, we get a set of more accurate emitter position estimates via the weighted least squares algorithm with the obtained initial solution, the average of these estimates is then taken as the final estimate of the emitter position. Simulation results show that the proposed algorithm achieves high positioning accuracy for both near and far field emitters.

Key words: passive location, time difference of arrival, multi-reference receivers, weighted least squares estimates, Cramer-Rao lower bound

CLC Number:

TN97

ZHU Guohui;FENG Dazheng;ZHOU Yan. TDOA location algorithm based on multi-reference receivers[J].J4, 2014, 41(4): 31-35+57.

References

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TDOA location algorithm based on multi-reference receivers

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