一种基于复合测量体制的高精度轨道测量方法

为解决特殊飞行器超长距离飞行时全航路飞行轨迹的高精度测量难题，提出了一种兼容我国目前两种主流测量体制的复合体制高精度测量系统方案和一种复合转发器构建思路，分析论证了其工作原理，建立了基于复合体制的轨道测量精度评估模型，并结合理论轨道完成了系统测量精度评估的仿真计算。结果表明，复合测量体制可以实现飞行器载荷的高效复用和装备资源的有效整合，弥补了单一测量体制轨道覆盖能力的不足，过渡段测速精度提升70%以上。基于其兼容属性，该体制可适用于后续1 000 km以上超长航路飞行器的轨道测量需求。

A high precision trajectory measurement method based on composite measurement system

In order to solve the problem of high precision measurement of whole route trajectory of special aircraft in the long distance flight,a composite high precision measurement system is proposed,which is compatible with China''s two mainstream measurement systems.A composite transponder construction idea is proposed and its working principle is analyzed.On this basis,a trajectory measurement accuracy evaluation model is established,and the measurement accuracy is simulated according to theoretical trajectory.The results show that the composite measurement system can realize efficient reuse of aircraft loads and effective integration of equipment resources,which makes up for the lack of track coverage capability of single measurement system,and the velocity accuracy of transition section is improved by more than 70%.Due to the compatibility of the system,it can be applied to the trajectory measurement of aircraft with ultra-long flight over 1 000 km in the future.