摘要
利用计算机来模拟合成孔径雷达回波信号是雷达系统仿真中重要的一部分。借助雷达目标的高频电磁散射特性,运用图形电磁计算方法,开发了可快速、有效地获取合成孔径雷达回波信号的方法,可为合成孔径雷达成像提供原始的雷达回波数据。以起浪海面为目标实例,利用海浪频谱构建海面的几何模型,针对此海面模型,运用高频散射机理,实时可视化地计算其电磁波回波场强以及模拟出时域回波信号。利用条带式合成孔径雷达成像方法,通过该回波信号仿真出海浪面的合成孔径图像,验证了该方法有效性。
The study of the valid simulation method of the echo signal of the sea surface for synthetic aperture radar is one important part of the radar simulation system .Using the characteristics of the high frequency electromagnetic scatter ,one method building the radar echo signal of the sea surface in the time region by the mean of Graphic Electromagnetic Computation is established ,including the construction of the sea model ,the computation of the echo filed strength and the echo time signal .Based on the principle of the Stripmap SAR ,the results prove this method to be valid .
出处
《电子测量技术》
2015年第6期118-121,共4页
Electronic Measurement Technology
关键词
电磁散射
图形电磁计算
合成孔径雷达
electromagnetic scattering
graphical electromagnetic computing
synthetic aperture radar（SAR）
