论文部分内容阅读
The integrity requirement should be satisfied when GNSS is used in aviation.There are now two ways for integrity monitoring,that is,receiver autonomous integrity monitoring(RAIM) and GNSS integrity channel(GIC) based on augmentation system.The rapid development of the Beidou satellite navigation system(COMPASS) will significantly improve the satellite geometry.Besides,the effects of first order ionosphere delay will be mitigated by the combination of GNSS multi-frequency signals.The availability of RAIM will be enhanced,which makes it possible to provide a worldwide seamless integrity service for aviation by using RAIM.The contribution of COMPASS to the availability of RAIM is analyzed by simulation;and the integrity requirement of which aviation approaching phrase can be satisfied when using COMPASS single system and its combination with other satellite navigation system is analyzed.Moreover,the influence of user range accuracy(URA) of COMPASS on integrity performance is discussed.
The integrity requirement should be satisfied when GNSS is used in aviation. There are now two ways for integrity monitoring, that is, receiver autonomous integrity monitoring (RAIM) and GNSS integrity channel (GIC) based on augmentation system. Rapid development of the Beidou satellite navigation system (COMPASS) will significantly improve the satellite geometry. Besides, the effects of first order ionosphere delay will be mitigated by the combination of GNSS multi-frequency signals. the availability of RAIM will be enhanced, which makes it possible to provide a worldwide seamless integrity service for aviation by using RAIM. The contribution of COMPASS to the availability of RAIM is analyzed by simulation; and the integrity requirement of which aviation approaching phrase can be satisfied when using COMPASS single system and its combination with other satellite navigation system is the influence of user range accuracy (URA) of COMPASS on integrity performance is discussed.