外测弹道速度与加速度的解算方法研究  

Calculation Algorithm for Speed and Acceleration by Using Trajectory Data

作　　者：鲁兴举[1] 张代兵[1] 彭学锋[1] 

机构地区：[1]国防科学技术大学机电工程与自动化学院,湖南长沙410073

出　　处：《测试技术学报》2013年第6期474-478,共5页Journal of Test and Measurement Technology

摘　　要：在飞行器外测弹道参数解算时,常利用由位置参数中心微分平滑的方法获取弹道速度与加速度参数,但微分得到的速度加速度数据跳动很大,不利于与内测参数进行精度比对.本文研究了样条函数和迭次下采样方法在弹道拟合和微分求速中的应用,实际数据处理结果表明,样条函数用于外测数据拟合和微分求速可以获得更高的精度.In processing exterior trajectory data of an aircraft for its speed and acceleration via position, the algorithm of central differentially moving average is often applied. The calculated result of speed and acceleration flounces largely, thus it is not suitable for accuracy comparison between trajectory data and telemetry data. The spline interpolation-differential method and the cyclic downsampling method are researched, and the practical testing data processing result shows that this novel method can get more precious results than the classical method for speed and acceleration calculation.

关 键 词：外测弹道 速度解算 加速度解算 样条函数 迭次下采样 

分 类 号：TJ013[兵器科学与技术—兵器发射理论与技术]