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Focusing Problems of a Buried Point Scatterer using a Low Frequency SAR

机译:使用低频SAR的埋入点散射器的聚焦问题

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摘要

In this paper, we inspect the range and azimuthal defocusing of a buried point scatterer for a low frequency (L or P band) synthetic aperture radar (SAR). Firstly we present the hydraulic electromagnetic and propagation models that allow us to calculate the water content profile in the soil, to deduce the dielectric constant and to simulate the electromagnetic (EM) wave propagation and attenuation. Secondly results of pulse simulation and focusing for several configurations (band polarization, incident angle, point scatterer depth, water content profile) are presented and discussed. The advantages and drawbacks of L and P radars are discussed in the conclusion.
机译:在本文中,我们检查了低频(L或P波段)合成孔径雷达(SAR)掩埋点散射体的距离和方位散焦。首先,我们介绍了水力电磁和传播模型,这些模型使我们能够计算土壤中的水分分布,推导介电常数并模拟电磁波的传播和衰减。其次,介绍并讨论了脉冲模拟和聚焦在几种配置(波段极化,入射角,点散射体深度,水含量分布图)方面的结果。结论中讨论了L型和P型雷达的优缺点。

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