1. NLOS Target Localization Behind an L-Shaped Corner With an L-Band UWB Radar
- Author
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Wei Zhang, Xiaqing Yang, Guolong Cui, Shihao Fan, Shisheng Guo, and Songlin Li
- Subjects
UWB radar ,L band ,Line-of-sight ,multipath exploitation ,General Computer Science ,Computer science ,General Engineering ,corner environment ,Signal ,law.invention ,Non-line-of-sight propagation ,Robustness (computer science) ,law ,Path (graph theory) ,General Materials Science ,NLOS target localization ,lcsh:Electrical engineering. Electronics. Nuclear engineering ,Radar ,lcsh:TK1-9971 ,Algorithm ,Internal connection - Abstract
For the reason of target multipaths ambiguities, localization for hidden moving target due to lack of line of sight (LOS) path in urban environments is a hard task. To handle this problem we propose a localization algorithm based on the internal connection of these multipaths in this paper. First, we establish an electromagnetic (EM) propagation model based on the characters of the measured signal received by an L-band single-input single-output (SISO) ultra-wideband (UWB) radar. After that, the model-based target localization algorithm is proposed based on a times-of-arrival (TOAs) association method, which is able to match the measured TOAs with the corresponding EM propagation paths correctly. The proposed method can cope with the case while some missing detections of TOAs happen. Simulation and experimental results ultimately validate the robustness and the state-of-the-art performance of the proposed algorithm.
- Published
- 2020
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