基于北斗双星定位系统的靶场空间精度分析

Spatial Accuracy Analysis for Experiment Range Based on Beidou Navigation Satellite System

把北斗双星应用于靶场实际,建立基于双星、光雷的联合测量模型,利用误差传播关系,使用逐点以及样条算法对典型弹道和整个靶场的空间精度进行分析,为靶场试验提供依据;同时还对不同地区北斗对靶场的影响进行分析,其结果与北斗精度特性基本吻合。本文使用逐点求解方法对一条典型弹道以及靶场进行了精度分布仿真,结果表明,此方法能有效地提供任意弹道以及靶场空间精度分布,为靶场试验中测站布局与弹道选择提供依据。

Beidou satellite navigation system is applied in an actual proving ground and a joint dual-satellite and optical and radar instrumentation model is established.Using error propagation relationship and point-by-point estimation and a spline algorithm,spatial accuracy of a typical ballistic trajectory and the spatial accuracy of the entire proving ground are analyzed to provide technical support for range experiments.Besides,this paper analyzes the influence of Beidou on the proving ground in different regions and the results are basically close to the position accuracy of Beidou.Accuracy distribution simulation results show that the algorithm provides the spatial accuracy distribution required for arbitrary ballistic trajectory and the proving ground.This also provides technical support for determination of the layout of instrumentation stations and trajectory selection.