基于雷达与三维地形融合方法研究与实现

Research and Implementation of a Fusion Method Based on Radar and 3D Terrain

为实现飞机在实际飞行过程中获取的前方三维地形更具备真实性和实时性,可利用雷达对前方地形进行实时探测,利用雷达探测数据对三维高程地形数据进行实时修正。提出一种基于雷达探测信息与高程三维地形融合方法,将雷达实时探测的地形信息与机载预存的三维地图数据进行融合后生成综合三维地形,融合后的三维地形具有更高精度和高可靠性,方法提高了飞行员在执行任务时对三维地形的感知力,能有效提升飞行的安全性。采用图形引擎显示技术对融合方法进行实验验证,通过对比融合前后的地形与真实地形的误差,验证了融合方法的有效性。

In order to obtain more real and real-time 3D terrain in front of the aircraft during actual flight,real-time detection of the terrain in front of the radar can be carried out,and real-time correction of 3D elevation terrain data can be made by using the radar detection data.This paper proposes a fusion method based on radar detection information and elevation 3D terrain,which fuses real-time radar detection information with airborne 3D map data to generate integrated 3D terrain.The integrated 3D terrain has higher accuracy and high reliability,and this method improves the perception of 3D terrain for pilots during task execution.It can effectively improve the safety of flight safety.Finally,the fusion method is verified experimentally by using the graphics engine display technology,and the effectiveness of the fusion method is verified by comparing the errors of the terrain before and after fusion with the real terrain.