超宽带雷达大气-土壤界面杂波建模

Record of the IEEE 2000 International Radar Conference [Cat. No. 00CH37037] Pub Date : 2000-05-07 DOI:10.1109/RADAR.2000.851861

Y. Lostanlen, Hugh Griffiths, B. Uguen, G. Chassay

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引用次数: 3

摘要

本文提出了一种模拟超宽带杂波的全局方法。在这种方法中，我们考虑来自粗糙空气-土壤界面的平面波散射(在时域)。时域散射通过两种不同的方法计算。第一种是二维时域有限差分(FDTD)算法，它特别适合于频率相关的地基。第二种方法在频域进行处理，然后进行离散傅里叶变换(DFT)以返回到时域。使用最后一种方法，我们可以将系统参数和统计粗糙表面集成到我们的模型中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Modelling of air-soil interface clutter for ultrawideband radar

This paper presents our global approach to model ultra-wideband (UWB) clutter. In this approach, we consider plane wave scattering (in the time domain) from a rough air-soil interface. The time-domain scattering is computed via two different techniques. The first one is a two-dimensional (2D) finite difference time domain (FDTD) algorithm, which is particularly well adapted to frequency-dependent subsoils. The second method is processed in the frequency domain prior to a discrete Fourier transform (DFT) which is performed to come back to the time domain. With this last method, we can integrate system parameters and statistically rough surfaces into our model.

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Record of the IEEE 2000 International Radar Conference [Cat. No. 00CH37037]

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