GPS接收机的自主完善性监测算法研究

完善性监测是 GPS接收机研制过程中的重要技术问题之一 ,其功能是在接收机不能用于导航服务时向用户提供告警信息。文中对基于最小二乘残差法的 GPS接收机自主完善性监测 (RAIM)算法进行分析与研究 ,并给出了检测门限的求解方法 ,最后对将该算法应用于 GPS/GL ONASS组合接收机时存在的问题进行了探讨。这一算法在某型号接收机的相关实验中取得了较好的效果。

Research on Autonomous Integrity Monitoring Algorithm of GPS Receiver

The integrity monitoring is one of the important techniques in the development of GPS receiver, it gives an alarm to user when the receiver can not provide a correct navigation information.The receiver autonomous integrity monitoring (RAIM) algorithm based on the least squares residuals method is studied in this paper,and then an approach of how to calculate decision thresholds is given.At last the problems of this algorithm used in the GPS/GLONASS integrated receiver is discussed.The experimental results of this algorithm used in a certain type of receiver indicate that it is useful and effective.