Precise asynchronous RF ToF measurement based on Two-Way-Ranging using heterogeneous clocks
Precise asynchronous RF ToF measurement based on Two-Way-Ranging using heterogeneous clocks
复制标题
基于使用异构时钟的双向测距的精确异步 RF ToF 测量
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
S. Ohyama
中科院分区：
文献类型：
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作者：
Y. Saigo;Sang;J. Takayama;S. Ohyama
提出了一种基于异质时钟双向测距的无线传感器网络射频飞行时间测距方法。它产生新的虚拟时间分辨率小于两个时钟的固有时间分辨率。为了在不需要两个节点同步的情况下获得TOF信息，该系统使用RF的往返时间，其中一个传感器节点在规定的时间发送RF信号。通过对该方法的分析，证实了该方法大大提高了飞行时间测距的分辨率。
In this paper, a novel RF TOF ranging method for wireless sensor networks based on Two-Way-Ranging (TWR) using heterogeneous clocks is proposed. It generates new virtual time resolution which is smaller than the intrinsic time resolution of two clocks. In order to get TOF information without synchronization of two nodes, this system uses round trip time of RF, where one sensor node transmits RF signals at prescribed time. We analyzed this method and confirmed that the resolution of TOF ranging is greatly improved.