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A Fiber Optic Link Reference System for Ground Penetrating Radar Measurements

机译:用于探地雷达测量的光纤链路参考系统

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摘要

An RF network analyzer normally uses a signal at a reference port to excite a device under test. The return from the device is compared in amplitude and phase to the reference to characterize the S-Parameters (reflection and transmission) of the device under test (DUT). In this case, the DUT was 30 meters of limestone above a mine in Northwest Pennsylvania, which was being tested for dielectric constant and attenuation at 3-33 MHz as part of a ground penetrating radar development effort. This paper describes the test configuration using a wideband fiber optic link for the reference signal, and provides plots of the experimental results.
机译:射频网络分析仪通常使用参考端口上的信号来激发被测设备。将来自设备的返回信号在幅度和相位上与参考信号进行比较,以表征被测设备(DUT)的S参数(反射和透射)。在这种情况下,DUT是宾夕法尼亚州西北部一个矿山上方30米的石灰石,作为探地雷达开发工作的一部分,正在对其介电常数和3-33 MHz处的衰减进行测试。本文介绍了使用宽带光纤链路作为参考信号的测试配置,并提供了实验结果图。

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