摘要
证明了GPS(GlobalPositioningSystem)RAIM(ReceiverAutonomousIn tegrityMonitoring)两种算法 :奇偶空间法和残差最小二乘法在数学上是等价的 .提出了一种新的GPSRAIM算法 ,并进行了仿真实验 .研究结果表明 ,该算法具有可用性高、漏警率低 ,故障检测灵敏等优点 ,满足了高精度、高可靠性的制导要求 .研究了可见星较少时 ,采用气压高度表辅助、接收GLONASS(GLObalNAvigationSatelliteSystem)信号等实现RAIM的方法 。
It is proved that the least square residual method is equal to the parity space method in detection rule. A GPS (global positioning system) RAIM (receiver autonomous integrity monitoring) algorithm is presented. The results show that it has high availability and low missed detection and is sensitive to fault detection. It fulfils the need of the reliability of high precision guidance system. The approach using the barometer and receiving GLONASS (global navigation satellite system) signal to realize GPS RAIM when lacking satellite number in view is studied, and it has been demonstrated by simulation.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2003年第8期673-676,共4页
Journal of Beijing University of Aeronautics and Astronautics
