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Due to the multipath and NLOS conditions, the TOA ranging error based on UWB (ultra-wide bandwidth), the first path energy and the total energy received are different. In this paper, we study the difference of the TOA ranging error, the first path energy and the total energy received in different environments, finding that the TOA ranging error is smaller than that in indoor scenario due to the metal...
In recent years, ultra-wide bandwidth (UWB) technology has been concerned because of its high signal bandwidth and high resolution. Based on a variety of measurement signal data in the near ground LOS scenario, with the signal frequency ranging from 3 GHz to 8 GHz, this paper studies the near-ground TOA ranging error variation characteristics with the bandwidth and transmission distance. Also a statistical...
For time-of-arrival-(TOA)-based indoor human tracking system, the wireless channel between human body surface and external reference node can be regarded as the source of inaccuracy. Since only the arrival time of direct path provides accurate range estimate, the nonline of sight caused by human body leads to undetectable direct path condition and thus results in a significant distance measurement...
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