基于高速火箭橇测速系统的误差分析

摘要

Velocity test system is an important part of the rocket sled test. The system provides the rocket sled motion data of speed⁃location,time⁃position and acceleration⁃time relationship in the whole process of rocket sled. In order to meet the needs of dynamic calibration test for inertial navigation system and Beidou navigation system,the composition structure and precision analysis of velocity test system are discussed emphatically. The main factors of error formation were found out by the aid of analy⁃sis,which provided a theoretical basis for further precision improvement of the rocket sled velocity test system.%火箭橇速度测试系统是火箭橇试验的核心组成部分，该系统提供火箭橇运动全过程的速度-位置关系、时间-位置关系和加速度-时间关系等火箭橇核心运动数据。为了满足目前惯导系统和北斗导航系统的火箭橇动态标定试验，重点讨论了火箭橇测速系统的组成结构，并对其系统精度做出详细误差分析。分析找出影响系统误差的主要因素，为后期进一步提高火箭橇测速系统的精度提供理论依据。