基于火箭橇弹道的北斗接收机动态仿真测试

Dynamic simulation test of Beidou receiver based on rocket skid trajectory

针对北斗接收机动态测试的问题,提出基于火箭橇弹道的北斗接收机动态仿真测试技术。该方法主要研究如何在火箭橇运动的加速度曲线的基础上通过多项式滤波、辛普森分段复化积分及坐标转换建立导航信号模拟器可输入的弹道仿真模型,并利用模拟器对两款可接收不同卫星信号的接收机开展仿真测试。通过对比仿真模型数据和接收机的解算数据计算动态定位、速度误差。误差结果反映接收机的动态性能,说明这种方法可以作为对北斗接收机动态测试的有效手段。

Considering the dynamic test of Beidou receiver,a dynamic simulation test technology of Beidou receiver based on rocket skid trajectory was proposed.This method mainly studied how to establish the trajectory simulation model which could be input by the navigation signal simulator by polynomial filtering,Simpson segmentation integral and coordinate transformation on the basis of the acceleration curve of the rocket skid motion,and the simulator was used for testing two receivers which could receive different satellite signals.The dynamic positioning and speed error were calculated by comparing the simulation model data with the calculating data of the receiver.The error result reflects the dynamic performance of the receiver,so this method can be used as an effective means for dynamic testing of the Beidou receiver.