Research of Signal-in-Space Integrity Monitoring Based on Inter-satellite Links

来源 :Chinese Journal of Electronics | 被引量 : 0次 | 上传用户:ralphth
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Using the Inter-satellite links(ISLs) to enhance the GNSS’s positioning accuracy and integrity is attracting much more attentions. In order to ensure the autonomous positioning accuracy and stability based on ISLs, a satellite and ground joint positioning mode is presented in this paper, which is constrained by quality grade of position error. Spatial error ellipsoid is applied to calculate parameters and achieve Signal-in-space(SIS) integrity monitoring. To check the accuracy of the mode and performance of monitoring, mixed constellation of Beidou system is simulated to support the analysis and investigate the impact of the high-low ISLs. The orbit determination results verify that the introduced integrity monitoring method can satisfy the integrity risk of 10-5/h and achieve the SIS integrity monitoring. Using the Inter-satellite links (ISLs) to enhance the GNSS’s positioning accuracy and integrity is attracting much more attentions. In order to ensure the autonomous positioning accuracy and stability based on ISLs, a satellite and ground joint positioning mode is presented in this paper, which is constrained by quality grade of position error. Spatial error ellipsoid is applied to calculate parameters and achieve Signal-in-space (SIS) integrity monitoring. To check the accuracy of the mode and performance of monitoring, mixed constellation of Beidou system is simulated to support the analysis and investigate the impact of the high-low ISLs. The orbit determination results verify that the introduced integrity monitoring method can satisfy the integrity risk of 10-5 / h and achieve the SIS integrity monitoring.
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张华夏:中国政策网总编辑、中国智慧工程研究会(国家一级社团)副会长。专注于政策研究、品牌战略,擅长书法、摄影、诗词创作。曾在山西日报社、山西高校联合出版社、中央党校