TY - GEN
T1 - Research on BDSBAS Dual-Frequency Message Scheduler Optimization
AU - Li, Jing
AU - Li, Rui
AU - Zhang, Jingcan
AU - Yang, Tiantian
N1 - Publisher Copyright:
© 2022, Aerospace Information Research Institute.
PY - 2022
Y1 - 2022
N2 - By analyzing the broadcasting status of the BDSBAS-B2a message, it is found that there are some problems in its current strategy, such as low proportion of effective messages, poor flexibility, poor standard compliance and poor scalability. Based on this, this paper puts forward a dynamic scheduling strategy of dual-frequency message with fixed time sequence, which makes full use of dual-frequency ranging error change identifier (DFRECI) to represent the change of dual-frequency ranging error identifier (DFREI). At the same time, this paper simulated the broadcast of the strategy. The result shows that when the strategy enhances three basic constellations under the normal operation of BDSBAS, the proportion of effective messages can reach 100%. Compared with current arrangement, the time for users to receive all types of messages for the first time is shortened by 41.67%. By making effective use of MT34, the strategy can increase the number of enhanced satellites from the current 54 to 85, which greatly improves the problem of poor scalability of enhanced satellites caused by overseas stations and the increase of constellations in the future.
AB - By analyzing the broadcasting status of the BDSBAS-B2a message, it is found that there are some problems in its current strategy, such as low proportion of effective messages, poor flexibility, poor standard compliance and poor scalability. Based on this, this paper puts forward a dynamic scheduling strategy of dual-frequency message with fixed time sequence, which makes full use of dual-frequency ranging error change identifier (DFRECI) to represent the change of dual-frequency ranging error identifier (DFREI). At the same time, this paper simulated the broadcast of the strategy. The result shows that when the strategy enhances three basic constellations under the normal operation of BDSBAS, the proportion of effective messages can reach 100%. Compared with current arrangement, the time for users to receive all types of messages for the first time is shortened by 41.67%. By making effective use of MT34, the strategy can increase the number of enhanced satellites from the current 54 to 85, which greatly improves the problem of poor scalability of enhanced satellites caused by overseas stations and the increase of constellations in the future.
KW - BDSBAS dual-frequency message
KW - Message arrangement strategy
KW - Satellite-Based Augmentation System (SBAS)
KW - Scalability of message
UR - https://www.scopus.com/pages/publications/85130220111
U2 - 10.1007/978-981-19-2580-1_9
DO - 10.1007/978-981-19-2580-1_9
M3 - 会议稿件
AN - SCOPUS:85130220111
SN - 9789811925795
T3 - Lecture Notes in Electrical Engineering
SP - 106
EP - 118
BT - China Satellite Navigation Conference (CSNC 2022) Proceedings - Volume II
A2 - Yang, Changfeng
A2 - Xie, Jun
PB - Springer Science and Business Media Deutschland GmbH
T2 - 13th China Satellite Navigation Conference, CSNC 2022
Y2 - 25 May 2022 through 27 May 2022
ER -