对星载SAR压制式干扰掩护区仿真建模研究

Study on Simulation and Modeling of Blanket Jamming Cover Area for Countering Space Borne SAR

有效掩护区是定量研究对星载SAR干扰效能比较简洁的手段。通过定义对星载SAR压制式干扰的有效掩护距离和有效掩护区,并结合雷达干扰统一方程,研究建立了对星载SAR干扰的仿真模型,并根据不同时期SAR所采取的天线,引入二种三维天线增益模型进行了仿真,可以得到不同输入条件下干扰掩护区,仿真结果验证了模型的合理性,有利于定量分析和评估对星载SAR的干扰效能。

Effective Cover Area is a laconic method to describe the jamming efficiency to space borne SAR. Base on the definition of the concept of Effective Cover Range and Blanket Jamming Cover Area, the simulation model of countering space borne SAR was studied. According to SAR antenna on different stage, two 3-D antenna gain models to the simulation model were introduced, so that they could output the characteristic of Blanket Jamming Cover Area under different situations, and the simulation results validate the model which are propitious to analyze and evaluate the efficiency of jamming the space borne SAR.