航空科学技术2025，Vol.36Issue(7)：49-56,8.DOI:10.19452/j.issn1007-5453.2025.07.007
基于单滤波器AIME的GNSS/INS紧组合完好性监测
Integrity Monitoring of GNSS/INS Tightly Coupled Based on Single-Filter AIME
摘要
Abstract
Integrity is an important indicator for measuring navigation performance,and its key lies in the integrity monitoring algorithm.Autonomous Integrity Monitoring Extrapolation(AIME)algorithm requires to construct parallel hierarchical filters for fault detection and exclusion(FDE),which leads to the disadvantages of complex structure and extensive computation.To address the shortcoming,a Single-Filter AIME(SFAIME)algorithm based on different visible satellite test statistics was proposed.To monitor the integrity of the Global Navigation Satellite System(GNSS)/Inertial Navigation System(INS)tightly coupled navigation system.The simulation results show that the SFAIME algorithm can effectively perform FDE after the satellite encounters a ramp fault.And compared to AIME algorithm,the running time is reduced by over 40%during single satellite fault and by over 90.7%during dual satellites fault.The more visible satellites there are,the more significant the processing speed advantage of the SFAIME algorithm becomes.关键词
GNSS/INS紧组合/故障检测与排除/AIME/SFAIME/斜坡故障Key words
GNSS/INS tightly coupled/FDE/AIME/SFAIME/Ramp fault分类
航空航天引用本文复制引用
孙淑光,王添光,刘瑞华..基于单滤波器AIME的GNSS/INS紧组合完好性监测[J].航空科学技术,2025,36(7):49-56,8.基金项目
国家自然科学基金(U2233215)National Natural Science Foundation of China(U2233215) （U2233215）
