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Antenna Aperture Synthesis for SFCW GPR in a Medium with Frequency Dispersion of Radio-Waves Propagation Phase Velocity

机译:具有无线电波传播相位速度频率色散的介质中SFCW GPR的天线孔径合成

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摘要

The problem of antenna aperture synthesis has been solved for the georadar probing on a relatively large surface area of the ground to increase the resolution in the horizontal plane in depth. Aperture synthesis is carried out with a priori unknown values of the radio wave propagation phase velocity below the surface of the soil and its frequency dispersion. For this, iterative procedures are used, in which the radio wave deceleration factor in the soil and the form of the frequency dependence of the radio wave propagation phase velocity are changed. Iterative procedures are completed when the image contrast of the heterogeneities of the subsurface soil structure reaches the greatest value.
机译:对于在地面的较大表面积上进行地雷达探测已经解决了天线孔径合成的问题,以增加水平面深度上的分辨率。在土壤表面以下的无线电波传播相速度及其频率色散的先验未知值下进行孔径合成。为此,使用了迭代过程,其中改变了土壤中的无线电波减速度因子和无线电波传播相速度的频率依赖性形式。当地下土壤结构异质性的图像对比度达到最大值时,便完成了迭代过程。

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