全球定位系统2024，Vol.49Issue(5)：44-53,10.DOI:10.12265/j.gnss.2024087
北斗星基增强双频服务性能评估方法及飞行试验分析
Performance evaluation method and flight test analysis of BeiDou satellite-based augmentation dual-frequency service
摘要
Abstract
The BeiDou satellite-based augmentation system(BDSBAS)realizes simultaneous augmentation of multiple satellite constellations by broadcasting dual-frequency augmentation messages through B2a signal to provide users with more accurate and reliable positioning and navigation services.In order to meet the demand of civil aviation for the positioning performance of BDSBAS in the approach phase,this paper researches the BeiDou satellite-based augmentation dual-frequency positioning algorithm,and evaluates the performance of the dual-frequency service of BDSBAS based on the data of the static station and the flight data in terms of the accuracy and integrity.The static experiment data were collected from the BDSBAS site in Beijing on January 17,2024,for the whole day.The flight measurement data were collected from the aviation test conducted at Faku Caihu General Aviation Airport in Shenyang.The static evaluation results show that the positioning errors of Beijing,Xi'an and Jiayuguan stations were relatively stable during the evaluation period.The horizontal positioning accuracy(95%)was better than 2 m;the vertical positioning accuracy(95%)was better than 3 m.Horizontal availability was better than 99.998%and vertical availability was better than 99.984%.The results of the flight test show that the horizontal and vertical accuracy during the test were 1.8269 m and 2.6014 m,respectively,and no integrity event occurred.The static and dynamic evaluation results met the requirements of the International Civil Aviation Organization(ICAO)APV-I indexes for accuracy and integrity.The results of this study are meaningful for the performance evaluation of BDSBAS.关键词
北斗三号系统(BDS-3)/星基增强系统(SBAS)/双频/飞行测试/定位精度/完好性Key words
BDS-3/satellite-based augmentation system(SBAS)/dual-frequency/flight tests/position-ing accuracy/integrity分类
天文与地球科学引用本文复制引用
王尔申,陈怡彤,于腾丽,张键,杨健,徐嵩,王永康..北斗星基增强双频服务性能评估方法及飞行试验分析[J].全球定位系统,2024,49(5):44-53,10.基金项目
国家自然科学基金(62173237) （62173237）
天津市城市空中交通系统技术与装备重点实验室(TJKL-UAM-202305) （TJKL-UAM-202305）
嵩山实验室基金(YYJC062022017) （YYJC062022017）
中国民航大学民航飞行广域监视与安全控制技术重点实验室开放基金(202105) （202105）
卫星导航系统与设备技术国家重点实验室开放基金(CEPNT2022B04,CEPNT2023A01) （CEPNT2022B04,CEPNT2023A01）
辽宁省属本科高校基本科研业务费专项(纵20240177,纵20240215) （纵20240177,纵20240215）
中国民航飞行技术与飞行安全重点实验室开放基金(FZ2021KF15,FZ2021ZZ06,FZ2020KF09) （FZ2021KF15,FZ2021ZZ06,FZ2020KF09）
