摘要
利用ＧＰＳ进行导航定位，需要解决ＧＰＳ完整性监视问题，文中利用奇偶矢量法用似然比的观点对其中的故障检测与隔离以及系统重构问题进行了详细的讨论，并采用该方法针对ＧＰＳ卫星可能出现的突发性故障及软故障分别进行模拟实验，给出了模拟结果。
GPS integrity monitoring problem must be solved in GPS navigation.This paper discusses in detail the FDI and FR problems with parity vector method using the likelihood rates point of view.At last,sudden failures and soft failures with GPS satellites are considered in simulations respectively,and the results show the reasonableness of the parity vector method.This method provides rationale basis for the implementation of RAIM.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1997年第3期262-266,共5页
Journal of University of Electronic Science and Technology of China
基金
电子部预研基金
关键词
GPS
导航
奇偶矢量法
卫星导航系统
integrity
fault detection and isolation
fault recovery
parity method
logarithmic likelihood rate
