一种基于点目标的雷达影像质量评价方法

摘要

提出一种空间性能指标和辐射性能指标相结合的基于点目标的雷达强度影像质量评价方法.利用空间分辨率、峰值旁瓣比和积分旁瓣比指标对雷达影像质量进行定性评价,并利用仿真和实测数据进行实验分析,结果表明,该方法具有较好的有效性和可操作性.%Filtering and classification of point cloud is the base of LiDAR data application. A classification method of object point data is put forward in this paper. In this method, fusion of LiDAR data and aerial image is done firstly. Then, the vegetation points are attracted according to their spectrum feature. In succession, building points are classified from the remainder points according to the height texture. Finally, the remained tree points are attracted according to echo information. An experiment is performed with a group of LiDAR data in Beijing. The results presented in this paper have shown that the method is efficient and available.