基于遥测姿态变换的外测数据跟踪部位修正方法  

Tracking Position Correction Method of Exterior Trajectory Measurement Data Based on Transformation of Telemetry Attitude

作　　者：李冬[1] 赵书圆 张鑫勇 周萱影 LI Dong;ZHAO Shuyuan;ZHANG Xinyong;ZHOU Xuanying(No.91550 Troops of PLA,Dalian 116023,China;National University of Defense Technology,Changsha 410073,China)

机构地区：[1]中国人民解放军91550部队,大连116023 [2]国防科技大学,长沙410073

出　　处：《空间控制技术与应用》2024年第2期59-69,共11页Aerospace Control and Application

基　　金：国家自然科学基金资助项目(61703408)。

摘　　要：外测数据跟踪部位修正对于飞行器飞行试验的高精度轨迹参数获取有着重要意义.提出一种基于飞行器遥测姿态数据和粗略轨迹参数的跟踪部位修正新方法,利用遥测姿态数据确定惯导平台中心与跟踪部位轨迹参数的变换关系,进而由粗略轨迹参数推算惯导平台中心与跟踪部位测距、径向速度、方位角和俯仰角的差异值,实现跟踪部位修正量的准确计算.采用误差传播法对粗略轨迹误差影响下的跟踪部位修正精度进行理论分析,验证了该修正方法在实际应用中的有效性.进一步通过仿真实验和实装实验检验了修正精度.结果表明跟踪部位修正量的计算误差远小于外测系统的精度指标要求,有重要的实际应用价值.Tracking position correction of exterior trajectory measurement data plays a key role in high accurate trajectory acquisition for aircraft fight experiment.A new method for tracking position correction using telemetry attitude data and rough trajectory parameters of aircraft is proposed in this paper.The transformation relationship of trajectory parameters between the platform center of inertial navigation and the tracking position is obtained by utilizing telemetry attitude data,and the difference numerical value of distance measurement,radial velocity,azimuth and elevation between the platform center of inertial navigation and the tracking position are calculated via rough trajectory parameters.Then the precise calculation for correction quantity of tracking position is achieved.The precision of tracking position correction under the influence of the rough trajectory errors is theoretically analyzed by using the method of errors propagation.Then the validity of this correction method in practical applications is verified.Both simulation experiment and field test are further given to demonstrate the precision of correction.Experimental results show that the calculation errors of tracking position correction are much less than the precision target of exterior trajectory measurement system.It is indicated that the proposed method has significant application value in practice.

关 键 词：外测 跟踪部位 遥测 轨迹参数 误差传播法 修正精度 

分 类 号：V557[航空宇航科学与技术—人机与环境工程]