合成孔径雷达（SAR)目标成像仿真，用于信号特征提取、信号消噪，在matlab环境中自动识别连通区域的大小,正确率可以达到98％，使用大量的有限元法求解偏微分方程，仿真图是速度、距离、幅度三维图像。- Synthetic Aperture Radar (SAR) imaging simulation target, For feature extraction, signal de-noising, Automatic identification in the matlab environment the size of the connected area, Accuracy can reach 98 , Using a large number of finite element method to solve partial differential equations, FIG simulation speed, distance, amplitude three-dimensional image.