简要介绍了现有的SAR图像仿真方法,提出了一种利用机载SAR图像进行星载SAR图像仿真的方法,对仿真原理进行了阐述,着重研究了图像几何特性、空间分辨率、噪声特性、辐射特性仿真的数学模型及设计流程,最后进行了计算机仿真。结果分析表明得到的仿真图像具有较高的逼真度,该星载SAR图像仿真方法是有效的。

In this paper,the present spaceborne synthetic aperture radar(SAR) image simulation methods are briefly discussed and a method of spaceborne SAR image simulation with airborne SAR image is proposed.In this method,the simulation principles are investigated,the mathematics model and design flow of geometric,spatial resolution,noise and radiation characteristics are carried out in detail,finally are used in computer simulation.The simulated image indicates a high degree of accuracy and demonstrates that this method is valid.

TN958