相控阵多目标测控系统中的坐标转换

Coordinate Transformations in Multi-object Phased-array TT&C System

用阵列天线代替传统测控系统中的面天线部分,可以实现在一定空域内对多个目标的连续波测控功能。这种设备在完成多个目标的角捕获和角跟踪过程中,需要完成多个目标预报位置的坐标转换。角捕获和角跟踪过程中采用的坐标系包括地心坐标系、地平坐标系和视线坐标系。本文在介绍了各个坐标系定义的基础上,对系统工作过程中需要的坐标转换过程进行了分析,给出了坐标转换公式。

With the phased-array antenna replacing the reflector antenna,a TT&C system can be used to perform the multi-target CW task in a definite airspace.While implementing multi-target angular capture and angular tracking,this equipment can implement coordinates transformations for multi-object predicting position.The coordinate system in angular capture and angular tracking includes geocentric coordinate system,plane coordinate system and line-of-sight coordinate system.On the base of definition about coordinate system,this paper analyses coordinate transformations in the system,introduces the formulae of coordinate transformations.