大地坐标系的超视距目标指示系统

Over the Horizon Target Designation System based on Geodetic Coordinate

超视距目标指示系统是为舰载导弹攻击本舰雷达视距以外目标而设计的。其主要功能是融合多方传感器的情报信息,解算出目标相对于导弹发射平台的距离和方位。在进行多传感器信息融合时,首先要做的工作就是把来自不同平台的多传感器数据转换到统一坐标系中。若选用大地坐标系为统一坐标系,直接在大地坐标系下进行时间对准、航迹滤波以及航迹融合,可以避免坐标系间的多次转换,节省大量的时间,并提高目标指示的精度。

Over the Horizon Target Designation System is designed for ship-borne missile to attack the target which is beyond local radar. The main function is to do Multi-Sensor data fusion, and then figure out the distance and orientation from missile-platform to target. Before Multi-Sensor data fusion, the first work is to transform Multi-Sensor data into unification coordinate. If we choose geodetic coordinate as the unification coordinate, and do spacial alignment, track filtering, and track fusion under this coordinate , we will avoid the defect of more coordinate transform , save more time and improve precision of target designation.