一种用于惯导系统车载试验的速度基准系统

A Kind of Speed Reference System for INS Vehicle-Carried Test

介绍了一种自行研制的用于捷联惯导车载试验的速度基准系统。该系统由卫星导航装置、车速采集装置和主控计算机组成,能够实时输出满足一定精度要求的速度数据,可作为捷联惯导跑车试验中的速度基准,用以模拟其它测速设备的输出。经过实际车载试验验证,该基准系统组成简单,功耗、体积、重量和速度精度满足捷联惯导车载试验要求,能够做到在无卫星导航信息条件下,模拟实现组合导航系统的测速功能。

This paper introduces a kind of speed reference system, which is used for SINS＇ vehicle-carried test. This system is composed of GNSS, vehicle speed acquisition instrument, and a master computer. It can provide the vehicle＇s realtime speed data satisfying given precision requirement as the speed reference, or simulating the output of other speed acquisition instrument. Based on the vehicle-carried test, this system composition is simple, and its power dissipation, size, weight and speed data precision can meet the requirements of SINS vehiclecarried test. It also can simulate speed acquisition function of integrated navigation system without satellite navigation information.