基于GPS/SINS紧耦合系统的历史故障次优融合检测法  

Historical Fault Suboptimal Fusion Detection Method Based on GPS/SINS Tightly Coupled System

作　　者：郝顺义[1] 冯文[1,2] 冯兴春 彭兴钊[1] 

机构地区：[1]空军工程大学航空航天工程学院 [2]95061部队 [3]飞利浦电子技术(上海)有限公司

出　　处：《导弹与航天运载技术》2013年第3期63-68,共6页Missiles and Space Vehicles

基　　金：陕西省电子信息系统综合集成重点实验室基金资助项目(201113y12);航空科学基金资助项目(20100818017)

摘　　要：为提高GPS/SINS紧耦合系统对于软故障的检测能力,在新息外推法的基础上提出一种历史故障次优融合算法。通过对历史故障进行加权次优融合,形成检验统计量进行故障检测,并提出野值诊断方法,解决该算法易受野值影响的问题。在GPS/SINS紧耦合系统基础上进行对比仿真,结果表明,历史故障次优融合算法在故障量越小的情况下,软故障检测效果越明显,而且能更好地消除野值对故障检测的影响。In order to improve detection ability for soft faults by GPS/SINS tightly coupled system, a historical fault suboptimal fusion detection method was proposed based on the innovative extrapolation method. By weighting fusion of historical faults, the test statistics was formed for failure detection, and an outlier diagnosis method was also proposed to deal with the influence of outlier on fault detection. Comparative simulation was conducted based on GPS/SINS tightly coupled system. The simulation result showed that the historical fault suboptimal fusion detection method had a better detect ability for soft faults under the condition of fewer faults, and could undermine the effect of outlier more effectively.

关 键 词：紧耦合 软故障 故障检测 故障次优融合检测方法 野值 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]