Performance evaluation and analysis of BDSBAS single frequency augmentation service
NI Yude1, YAN Miaoyu1，2, LIU Ruihua1
1. College of Electronic Information Engineering and Automation, Civil Aviation University of China, Tianjin 300300, China； 2. Patent Examination Cooperation(Jiangsu) Center of The Patent Office, CHIPA, Suzhou, Jiangsu 215163, China
Abstract：The performance of Beidou satellite-based augmentation system (BDSBAS) single frequency augmentation service was evaluated and analyzed according to the shortcomings of the research on the corresponding operational performance support of the BDSBAS with the actual data. The calculation process of BDSBAS accuracy enhancement and integrity enhancement was comprehensively sorted out based on the relevant international standards. The process of accuracy enhancement and integrity enhancement was achieved through the publicly broadcast BDSBAS-B1C messages, and the enhancement results were used to evaluate the service performance of BDSBAS in China in the second quarter of 2022 in terms of precision, integrity and availability. The results show that during the test period, the BDSBAS single frequency augmentation service can support the accuracy and availability required for approach procedure with vertical guidance (APV)-I operation, and the horizontal and vertical accuracies respectively range from 1.5 to 5.5 m and from 2.5 to 10.3 m with the availability of APV-I operation of 99.871% (better than 99.000%). Although the transient integrity does not support APV-I, the positioning error is completely enveloped by the protection level without misleading information and dangerous misleading information events.
倪育德1， 闫苗玉1，2， 刘瑞华1. BDSBAS单频增强服务性能评估及分析[J]. 江苏大学学报（自然科学版）, 2024, 45(5): 556-564.
NI Yude1, YAN Miaoyu1，2, LIU Ruihua1. Performance evaluation and analysis of BDSBAS single frequency augmentation service[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2024, 45(5): 556-564.
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2024, Vol. 45 
