一种SAR成像区域规划方法及软件可视化界面实现

A SAR Imaging Area Planning Method and Software Visual Interface Implementation

合成孔径雷达(SAR)对于某区域的成像分辨率、波束扫描方位俯仰角、成像结果的畸变率等参数在目前仍主要通过对目标区域取点计算得到,计算不够方便和直观。直接通过雷达的需求分辨率和目前雷达的位置、姿态、速度得到雷达的可成像区域在工程中仍具有实际应用意义。针对这一情况,实现无人机载SAR波束与姿态自动解算,计算在雷达沿特定轨迹飞行过程中的波束扫描范围和对应不同分辨率时的可成像区域,完成成像区域自动规划软件设计,并进行了仿真验证。

The parameters of synthetic aperture radar(SAR)for a certain area,such as the imaging resolution,beam scanning azimuth angle and pitch angle,and the distortion rate of imaging result are still mainly calculated by taking points from the target area at present.The calculation is not convenient and intuitive.Directly through the required resolution of the radar and current radar position,attitude,speed to obtain the radar’s imaging areas still have practical application significance in the project.In response to this situation,the automatic solution of the beam and attitude of unmanned aerial vehicle(UAV)-borne SAR is realized,the beam scanning range and the imaging areas corresponding to different resolutions are calculated during the flight of the radar along a specific trajectory,and the software design that can automatically plan the imaging area is completed,and the simulation verification is carried out in this paper.