基于误差分析的导航信号性能评估方法

Comprehensive Evaluation of Satellite Navigation Signal Performance Based on Error Analysis

摘要:

导航卫星信号性能评估是卫星导航系统性能评估的主要组成部分,与信号有关的系统性能指标包括首次定位时间、静态定位精度、接收灵敏度、抗多径性能、抗干扰性能及兼容互用性;文章在分析卫星导航系统性能与导航信号关系的基础上,建立信号性能相关指标评估模型,并进行定量误差分析,形成一套针对信号性能系列指标的综合评估方法;通过选取卫星导航民用信号进行仿真,验证了此方法的实际适用性,可以为导航信号设计和信号接收技术开发提供有效辅助手段。

Abstract:

The satellite navigation signal performance evaluation is the main part of satellite navigation system performance evaluation. Indexes of the satellite navigation system performance related signal including the first positioning time, static positioning accuracy, the receiving sensitivity, anti multipath performance, anti disturbance performance, compatibility and interoperability. Based on the analysis of the relationship between performance of satellite navigation system and navigation signal, this article establishes the related indicators signal performance evaluation model, and analyses error sources of signal performance, puts forward a comprehensive evaluation method of a signal. The simulation through the selection of satellite navigation civil signal, proved the applicability of this method, can provide effective AIDS to navigation signal design and signal receiving technology development.