基于射线理论的建筑物SAR图像仿真方法

Approach based on ray technique for simulation of the SAR image of the building

基于物理光学法(PO)和射线理论构建了建筑物目标的多次散射模型,并结合雷达成像原理,提出了一种基于射线理论的建筑物SAR图像仿真方法,在此基础上,本文对平顶和尖顶建筑物目标进行了SAR图像仿真,仿真结果表明,该方法得到的SAR图像可以有效的获得建筑物目标SAR图像的多径散射特征。该方法为建筑物SAR图像的信息提取和三维重建工作提供了有利的研究工具。

In this work,an approach based on the ray technique for the simulation of the SAR image of the building is proposed.In this approach,the ray technique and the physical optics are employed to calculate the multi-path scattering of the building,also the SAR image formation is used to get the SAR image of the building. Furthermore,simulations are implemented on the building with flat roof and slope roof.The results tests the validity of the approach proposed.And it is hope that the approach in this work could be some help for the feature extraction and reconstruction of the building from the SAR image.