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首页> 外文会议>2012 International Conference on Wireless Communications amp; Signal Processing >Analysis of TOA estimation using the received signal characteristics in IR UWB ranging with energy detection receiver
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Analysis of TOA estimation using the received signal characteristics in IR UWB ranging with energy detection receiver

机译：使用能量检测接收器的IR UWB测距中的接收信号特征对TOA估计进行分析

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摘要

The energy detection (ED) receiver is a practical solution for time of arrival (TOA) estimation in ultra wideband (UWB) ranging. The task of TOA estimation under UWB dense multipath channel is to determine the direct path (DP). In the ED receiver, threshold-crossing (TC) is used a lot. However, the threshold should be elaborately chosen, or else the false detection probability will be high. It is difficult to acquire the optimal threshold. In our previous study, we have proposed a novel method to estimate the TOA based on the received signal characteristics, which is effective and robust. However, there is not enough in-depth analysis of the method in the original paper in which the novel method is proposed. In this study, we make a further analysis of the method in several aspects, especially some key parameters which can affect the TOA estimation performance of our method. Some important and interesting conclusions are drawn in this paper. Simulations are carried out to verify these conclusions in the IEEE 802.15.4a channels.
机译：能量检测（ED）接收器是超宽带（UWB）测距中到达时间（TOA）估计的实用解决方案。 UWB密集多径信道下TOA估计的任务是确定直接路径（DP）。在ED接收机中，经常使用阈值交叉（TC）。但是，应该精心选择阈值，否则错误检测的可能性会很高。难以获得最佳阈值。在我们以前的研究中，我们提出了一种基于接收信号特征来估计TOA的新颖方法，该方法有效且可靠。但是，在提出该新方法的原始论文中，对该方法没有足够的深入分析。在这项研究中，我们将从多个方面对方法进行进一步分析，尤其是一些可能影响我们方法的TOA估计性能的关键参数。本文得出了一些重要而有趣的结论。进行仿真以验证IEEE 802.15.4a通道中的这些结论。

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