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WiFi-based imaging for ground penetrating radar applications: fundamental study and experimental results

机译：基于WiFi的地面渗透雷达应用的成像：基础研究和实验结果

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摘要

As a fundamental research step for subsurface target imaging by passive ground penetrating radar, some simulation and experimental results of passive bistatic radar imaging for short-range targets by using IEEE 802.11 Wireless Fidelity (WiFi) wave as the source of illumination have been presented. As the WiFi signal only penetrates shallow layers and yet lacks bandwidth for high resolution subsurface structure mapping, the interrogation of cooperative targets with the passive bistatic radar approach is demonstrated. This strategy is achieved by inserting surface acoustic wave (SAW) delay lines acting as dedicated reflectors allowing for subsurface tagging (identification) or sensing (temperature measurement) through the fine measurement of echo delays. Experimental results show that short-range targets, such as cars and metallic plates located within 10 m, can effectively be detected and imaged. The response of the SAW delay lines can also be well probed.
机译：作为通过被动地面渗透雷达的地下目标成像的基本研究步骤，通过使用IEEE 802.11无线保真（WiFi）波作为照明源的短距离目标的无源双态雷达成像的一些模拟和实验结果。由于WiFi信号仅穿透浅层并且缺乏用于高分辨率地下结构映射的带宽，因此证明了具有被动双雷达方法的协同目标的询问。通过插入充当专用反射器的表面声波（SAW）延迟线来实现该策略，允许通过回声延迟的精细测量来实现地下标记（识别）或感测（温度测量）。实验结果表明，可以有效地检测和成像，因此可以有效地检测和成像，因此可以有效地检测和成像等内部目标，例如位于10米内的汽车和金属板。锯延迟线的响应也可以溶扰探测。

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  • 来源
    《The Journal of Engineering》 |2019年第20期|6364-6368|共5页
  • 作者

    Feng Weike; Friedt Jean-Michel; Hu Zhipeng; Cherniak Grigory; Sato Motoyuki;

  • 作者单位

    Tohoku Univ Grad Sch Environm Studies Sendai Miyagi Japan;

    FEMTO ST Time & Frequency Dept Besancon France;

    Jilin Univ Coll Geoexplorat Sci & Technol Changchun Jilin Peoples R China;

    Tohoku Univ Grad Sch Environm Studies Sendai Miyagi Japan;

    Tohoku Univ Ctr Northeast Asian Studies Sendai Miyagi Japan;

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