| 基于Fuzzy ARTMAP的GPS/INS组合导航系统故障诊断 |
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| 引用本文： | 靳星,宋华,邱红专,王养柱.基于Fuzzy ARTMAP的GPS/INS组合导航系统故障诊断[J].宇航学报,2011(9). |
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| 作者姓名： | 靳星 宋华 邱红专 王养柱 |
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| 作者单位： | 北京航空航天大学自动化科学与电气工程学院;北京航空航天大学无人驾驶飞行器设计研究所; |
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| 基金项目： | 国家自然科学基金(61074082);国家自然科学基金(60704006); 空间智能控制技术国防科技重点实验室基金(SIC07030101) |
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| 摘 要： | 将基于双状态传播器的状态χ2检验法(SCST)结合Fuzzy ARTMAP神经网络应用于GPS/INS紧组合导航系统故障的诊断和参数识别。首先,采用双状态传播器的状态χ2检验法对组合导航系统进行故障检测,得到故障的特征模式,并给出了双状态传播器重置时间间隔选择的充分条件;然后,利用Fuzzy ARTMAP神经网络结合特定的飞行器机动对故障模式进行分类,给出了一种新的分类方法;对于飞行器按照不同轨迹进行飞行的情况,也可有效的识别故障源。最后将分类的结果送入另一个Fuzzy ARTMAP神经网络进行故障参数的估计。仿真结果表明,针对组合导航系统中陀螺、加速度计、GPS信号的一度故障,此方法能有效进行检测和隔离,并能准确估计出故障发生时间和故障幅值。
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| 关 键 词： | 故障诊断 故障参数识别 FuzzyARTMAP 双状态χ2检验 |
Fuzzy ARTMAP Based Fault Diagnosis Approach for GPS/INS Navigation System |
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| JIN Xing,SONG Hua,QIU Hong-zhuan,WANG Yang-zhu.Fuzzy ARTMAP Based Fault Diagnosis Approach for GPS/INS Navigation System[J].Journal of Astronautics,2011(9). |
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| Authors: | JIN Xing SONG Hua QIU Hong-zhuan WANG Yang-zhu |
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| Institution: | JIN Xing1,SONG Hua1,QIU Hong-zhuan1,WANG Yang-zhu2 (1.School of Automation Science and Electrical Engineering,Beihang University,Beijing 100191,China,2.Research Institute of Unmanned Aerial Vehicle,China) |
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| Abstract: | A method of fault diagnosis and parameter identification for GPS /INS tightly coupled navigation systems is presented in this paper.A two state propagator based on state chi-square test(SCST) and a Fuzzy ARTMAP neural network are used in this approach.First,the two state propagators based on state chi-square test is applied to detect the fault.The sufficient condition for determining the time interval to reset the state propagator is given.Then the fault is classified by using a Fuzzy ARTMAP neural network ... |
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| Keywords: | Fault diagnosis Fault identification Fuzzy ARTMAP Two state propagator-state chi-square test |
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