带目标高度约束信息的TOA无源定位

doi:10.3969/j.issn.1001-2400.2017.03.023

Abstract

Abstract:

This paper considers the problem of locating a source on the Earth surface whose altitude is known a priori using time of arrival (TOA) measurements obtained in spatially distributed receivers. The receiver positions are subject to random errors. The Cramer-Rao lower bound (CRLB) analysis shows that exploiting the source altitude information can improve the source localization accuracy compared to the TOA-only localization system. A weighted least squares (WLS) source localization algorithm exploring both the source altitude and TOA measurements is developed. The proposed solution is shown analytically to achieve the CRLB over a small noise region. Simulation results demonstrate the good performance of the proposed method.

DENG Bing;SUN Zhengbo;YANG Le;PENG Huafeng;XIONG Jinyu. Geolocation of a known altitude object using TOA measurements[J].Journal of Xidian University, 2017, 44(3): 133-137.

References

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Geolocation of a known altitude object using TOA measurements

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