Analysis of B2b signal of BDS III satellite

• Main Authors: He Xulei, Liu Cheng, Chen Ying, Ba Xiaohui, Chen Jie
• Format: Article
• Language: zho
• Published: National Computer System Engineering Research Institute of China 2020-03-01
• Series: Dianzi Jishu Yingyong
• Subjects: bds iii; b2b; ppp-b2b; information structure
• Online Access: http://www.chinaaet.com/article/3000115939

With the construction of BDS III satellite nearing completion, Beidou service will transition smoothly to be provided mainly by BDS III system. The B2b signal interface document was announced on December 27, 2019. B2b signals are divided into two types: B2b signal that provides basic navigation services and PPP-B2b signal that provides precise point positioning services. Based on the B2b signal interface control file, this paper introduces the B2b signal information structure, message type, and analysis results of satellite signals in the sky, and gives the positioning accuracy results of B2b signals. The PPP-B2b information in the sky is also analyzed. This article also explores the Q branch signal of B2b.