基于测角元和高程信息融合的弹道定位求速

TRAJECTORY POSITIONING AND VELOCITY DETERMINATION BASED ON ANGLE MEASUREMENT AND HEIGHT INFORMATION FUSION

针对靶场试验中只有单站光学测角数据的不完全测量情况 ,讨论了如何结合遥测高程信息 ,得到目标的位置和速度参数 .建立了弹道参数的节省参数模型、测元真实信号模型 .运用联合处理手段 ,采用改进Gauss Newton法求解方程 ,给出了相应的仿真计算 .结果表明 ,基于现有光测设备和遥测高程精度 ,弹道解算精度能基本满足要求 .尤其是在大部分跟踪段落有多站数据 ,较短时间内只有单站测角数据时 ,能给出全程弹道 。

A circumstance of incomplete data measurement in test range experimentation is discussed, under which only the single station optical azimuth and elevation angle data are available. Combining with the telemetry height information, we get the position and velocity parameters of the target. The reduced parameter model of the trajectory parameters and the measurement elements signal model are constructed. The combined processing method is employed. With the improved Gauss Newton method, the solution of the equations are gotten. Finally, corresponding simulation results are presented, which show that the trajectory accuracy can be fairly satisfied with the existing optical equipment and under the existing telemetry height accuracy. The overall trajectory can be obtained to meet the requirements of test evaluation accuracy when there are data of several stations during the most time of tracking and only angle data of a single station during a rather short interval.