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arXiv 1806.02130eess.SP
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利用无线双向式的干涉测量(Wi-Wi)进行距离变化监测

Range Variation Monitoring with Wireless Two-Way Interferometry (Wi-Wi)

Bhola R. Panta, Kohta Kido, Satoshi Yasuda, Yuko Hanado, Seiji Kawamura, Hiroshi Hanado, Kenichi Takizawa, Masugi Inoue, Nobuyasu Shiga

摘要:

我们展示了一种简单的技术,用于监测两个远程站点之间的毫米级精度的范围变化,使用现成的无线通信模块。随着越来越多的设备被连接,并且正在开发需要设备彼此协作的新服务,对无线设备的灵活定位的需求显著增加。我们表明,可以通过分析设备之间的无线通信信号的传播延迟来监测距离变化。我们以前报告了一种技术同步时钟皮秒精度通过监测的时间变化的两个铷钟位于远程站点。传播时间变化的精确测量对于时钟的精确同步是必要的,并且我们使用该信息来以高精度估计距离。在局部情况下,我们的技术可以很容易地实现毫米精度的测量系统。此外,它在系统设计方面不太复杂,并且可以是需要精确位置测量的现有系统的低成本替代方案。我们设想,这个演示协议将在无线通信芯片和微处理单元中实现。

英文摘要:

We demonstrated a simple technique for monitoring range variation with millimeter-precision between two remote sites using off-the-shelf wireless communication modules. The need for the flexible positioning of wireless devices is significantly increasing as more devices are being connected and new services are being developed that require devices to collaborate with one another. We showed that one can monitor the distance variation by analyzing the propagation delay of the wireless communication signal between devices. We previously reported a technique for synchronizing clocks with picosecond precision by monitoring the time variation of two rubidium clocks located at remote sites. Precise measurement of the propagation time variation was necessary for precise synchronization of the clocks, and we used this information to estimate the distance with high precision. In a localized situation, our technique makes it easy to implement a millimeter-precision measurement system. Furthermore, it is less complex in terms of system design and can be a low-cost alternative to existing systems that require precise position measurement. We envision that this demonstrated protocol will be implemented in wireless communication chips and microprocessing units.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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