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中文摘要：
选择了新疆渭库三角洲（库车县、新和县、沙雅县）为实验区,利用Ulaby和Chapp的后向散射模型分别模拟了HV极化和HH极化的入射角为20°、24°、30°、33°、37°和40°的雷达后向散射系数图像。分析了不同入射角下图像各点后向散射系数值的散点图以及统计特征,得出由于入射角度的变化,两种极化的图像后向散射系数值变化较大,其变化趋势均符合余弦函数曲线分布,且模拟SAR图像很好的保留了地面散射信息。
英文摘要：
Synthetic Aperture Radar（SAR）image simulation techniques are widely used in the SAR system design and verification,SAR image orthorectification,SAR image interpretation and target identification.With the development of the SAR,it is necessary to simulate more SAR images.This article chose the WeiKu delta（KuChe,XinHe,ShaYa counties） in XinJiang as an experimental area,using the Ulaby and Chapp backscattering models to simulate the HV and HH polarization radar backscattering coefficient image at the incidence angle of 20°,24°,30°,33°,37° and 40° respectively.We analyzed the scatter plot and statistical characteristics at different incidence angle.The results show：the two polarization backscattering coefficients change fiercely because of the incidence angle changes and its tendency conforms to the cosine function curve distribution;the simulated SAR image keeps the ground scattering information well.
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