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空间对准是实现多机只测角无源定位首先要解决的问题,对此,提出一种适合该应用背景的空间对准方法.该方法选择融合载机初始时刻地理坐标系作为融合中心坐标系,首先将载机在各自机体坐标系中获得的方位角转换到各自载机地理坐标系中;然后再将其转换到原点位于各载机质心、与融合中心地理坐标系平行的坐标系中,推导出方位角位于此坐标系的解析表达式.对目标来波方向、载机姿态角、各载机相对融合中心距离等因素的影响进行仿真分析,得出了各因素对空间对准过程影响的量化结论.
Spatial alignment is the first problem to be solved to realize passive localization of multi-machine only angle-measuring, and a spatial matching method suitable for the application background is proposed.This method chooses the geographic coordinate system of fusion carrier as the fusion center coordinate Department, first of all the carrier in the respective body coordinate system to obtain the azimuth into the geographical coordinates of each carrier system; and then convert it to the origin is located in the center of gravity of the aircraft carrier, and fusion center geographic coordinate system parallel to the coordinate system , The analytical expression of the azimuth angle in this coordinate system is deduced.The influence of the factors such as the direction of the target wave, attitude angle of the aircraft and the relative fusion center distance of the aircraft is simulated and analyzed, Quantitative conclusions of impact.