基于单频完好性参数包络要求的SBAS服务范围确定方法

Research on Method for Determining Service Range of SBAS Based on the Envelope Requirement of SF Integrity Parameters

基于单频完好性参数99.9%包络概率的要求,提出一种确定星基增强系统SBAS(satellite-based augmentation system)服务范围的方法。对欧洲EGNOS实际播发的完好性信息进行分析发现,使用本文方法推算出的EGNOS服务范围与其公布范围基本一致。该方法可为北斗星基增强系统BDSBAS(Beidou satellite-based augmentation system)服务范围的确定提供理论依据,促进BDSBAS服务性能的提升。

Based on the requirement of 99.9%envelope probability of the SF integrity parameter,this paper proposes a method to determine the service range of the satellite-based augmentation system(SBAS).Through the analysis of the integrity information broadcast by EGNOS in Europe,the service range of EGNOS calculated using this method is basically consistent with the service range announced.This method will provide support for the determination of the service range of the Beidou satellite-based augmentation system(BDSBAS)and promote the continuous improvement of the service performance of the BDSBAS.