基于自适应滤波新息的卫导防欺骗干扰方法研究  

Research on Anti-Deception and Interference Methods for Satellite Navigation Based on Adaptive Filtering Innovation

作　　者：袁克非[1] 李云飞 YUAN Ke-fei;LI Yun-fei(Wuhan Second Ship Design and Research Institute,Wuhan 430205,China;Huazhong Institute of Electro-Optics-Wuhan National Laboratory for Optoelectronics,Wuhan 430223,China)

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430205 [2]华中光电技术研究所—武汉光电国家研究中心,湖北武汉430223

出　　处：《光学与光电技术》2024年第4期70-75,共6页Optics & Optoelectronic Technology

摘　　要：惯/卫组合导航是船载惯导实现长航时、高精度导航的重要手段,可实现惯导导航误差的实时估计和闭环,保证惯导输出高精度导航信息。但在惯/卫组合导航模式下,卫导受到欺骗干扰后,会导致惯导估计的导航误差不准确,即使惯导从组合导航状态切换到自主导航状态,仍会使导航精度性能下降。设计了一种基于自适应滤波新息的卫导防欺骗干扰方法,利用惯/卫组合滤波新息构建卡方统计量,并改进滤波方法,对卫导的有效性进行检测,根据检测结果,对卫导提供参考位置信息进行选择性使用,使得惯导估计的导航误差不受卫导信息质量的影响。通过动态跑车试验对卫导防欺骗干扰算法进行验证,验证试验结果表明,在卫导受到欺骗干扰时,惯/卫组合导航切换进入自主导航后,惯导可继续保精度工作,相比传统组合导航算法位置精度高出至少6倍以上。该方法可为惯性导航领域惯/卫组合导航算法设计中的卫导防欺骗干扰的工程化实现提供参考。Inertial/satellite integrated navigation is an important means for shipborne inertial navigation to achieve longterm high-precision navigation.It can achieve real-time estimation and closed-loop of inertial navigation errors,ensuring high-precision navigation information output by inertial navigation.However,satellite navigation is susceptible to deception and interference,resulting in inaccurate navigation errors estimated by inertial navigation.When inertial navigation switches from integrated navigation state to autonomous navigation state,the navigation accuracy performance drops sharply.This article designs a method for preventing deception and interference in satellite navigation on the device side,using inertial/satellite integrated navigation filtering innovation to construct Chi-square statistics to detect the effectiveness of satellite navigation.Based on the detection results,the reference position information provided by satellite navigation is selectively used,so that the navigation error estimated by inertial navigation is not affected by the quality of satellite information.And the dynamic sports car test is used to verify the designed satellite navigation anti deception interference algorithm.The verification results show that when the satellite navigation is subjected to deception interference,the inertial/satellite integrated navigation switches to autonomous navigation,and the inertial navigation can continue to work with high accuracy.Compared with the traditional integrated navigation algorithms,the position accuracy is at least 6 times higher.This study can provide reference for the engineering implementation of satellite navigation anti deception interference in the design of inertial/satellite integrated navigation algorithms in the field of inertial navigation.

关 键 词：惯/卫组合导航 卫导防欺骗 滤波新息 卡方检测 自适应滤波 

分 类 号：TN967.2[电子电信—信号与信息处理]