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Robust Sensor Geometry Design in Sky-Wave Time-Difference-of-Arrival Localization Systems

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Communications, Signal Processing, and Systems (CSPS 2019)

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 571))

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Abstract

This paper studies the sensor geometry design problem of sky-wave time-difference-of-arrival (TDOA) localization systems under non-line-of-sight (NLOS) scenario where signals are reflected by ionosphere-layer before arriving at sensors. Traditionally, the optimal sensor geometries for line-of-sight (LOS) scenarios have been derived. However, ionosphere-layer heights (IHs) are generally inaccurately known. IH errors can severely degrade localization performance but the joint estimation of IHs and target location is conventionally an ill-conditioning problem. To solve this problem, we propose a grouped sensor geometry, which enables the joint estimation of IHs and target location. In this way, we improve the robustness against IH errors in sky-wave TDOA localization. Theoretical analysis and performance comparison validate that the superiority of our proposed grouped sensor geometry.

Key Program of National Natural Science Foundation of China under Grant 61831009.

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Correspondence to He Ma .

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Ma, H., Mao, Xp., Zhang, Tn. (2020). Robust Sensor Geometry Design in Sky-Wave Time-Difference-of-Arrival Localization Systems. In: Liang, Q., Wang, W., Liu, X., Na, Z., Jia, M., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2019. Lecture Notes in Electrical Engineering, vol 571. Springer, Singapore. https://doi.org/10.1007/978-981-13-9409-6_278

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  • DOI: https://doi.org/10.1007/978-981-13-9409-6_278

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-13-9408-9

  • Online ISBN: 978-981-13-9409-6

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