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2013•International Journal of Wireless and Mobile ComputingRequires access

Analysis of TDOA based radar target positioning in LOS and NLOS environments

Shensheng Tang, Yi Xie, Liqiang Zhang, Chenghua Tang

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Abstract

We present the analysis of a radar target positioning technique in both Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) environments. A Time-Difference-of-Arrival (TDOA) method is investigated to find the target position and its positioning accuracy in terms of the Cramer–Rao Lower Bound (CRLB). Explicit analytical results are derived under both the only LOS condition and the mixed LOS and NLOS condition. Numerical examples are provided for further quantitative evaluation.

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What this paper is about

We present the analysis of a radar target positioning technique in both Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) environments. A Time-Difference-of-Arrival (TDOA) method is investigated to find the target position and its positioning accuracy in terms of the Cramer–Rao Lower Bound (CRLB). Explicit analytical results are derived under both the only LOS condition and the mixed LOS and NLOS condition. Numerical examples are provided for further quantitative evaluation.

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Available abstract

We present the analysis of a radar target positioning technique in both Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) environments. A Time-Difference-of-Arrival (TDOA) method is investigated to find the target position and its positioning accuracy in terms of the Cramer–Rao Lower Bound (CRLB). Explicit analytical results are derived under both the only LOS condition and the mixed LOS and NLOS condition. Numerical examples are provided for further quantitative evaluation.

Key concepts: Non-line-of-sight propagation, Multilateration, Cramér–Rao bound, Computer science, Radar, FDOA, Position (finance), Time of arrival

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