GPS诱骗下GPS/INS组合导航偏差分析  

Bias Analysis of GPS/INS Integrated Navigation Under GPS Deception

作　　者：史密[1] 牟京燕 陈树新[1] 

机构地区：[1]空军工程大学信息与导航学院,西安710077 [2]空司航技室,北京100038

出　　处：《电光与控制》2016年第2期16-20,共5页Electronics Optics & Control

基　　金：国家自然科学基金(61071014)

摘　　要：为分析GPS/INS组合导航在GPS受诱骗时产生的导航定位偏差,在建立松耦合组合导航模型和GPS诱骗模型的基础上,利用多维泰勒分析的方法推导了转发时延与GPS诱骗偏差的解析关系,进而结合卡尔曼滤波递推式分析了GPS诱骗偏差对组合导航定位结果的影响。理论推导和模拟仿真表明:对GPS实施诱骗可有效影响松耦合组合导航的定位结果,当前时刻组合导航定位偏差同时受到之前时刻偏差与当前时刻GPS诱骗偏差的影响,且之前时刻偏差权重较大。To analyze the bias of GPS/INS integrated navigation under GPS deception, the loose coupled integrated navigation model and GPS spoofing model were established. On the basis of these models, the analytic relationship between deception time-delay and GPS deception bias was deduced by using the method of multidimensional Taylor analysis, and the effect of GPS deception bias on the locating result of integrated navigation was analyzed by Kalman recursion. The theoretical derivation and simulation analysis proved that： 1 ） GPS deception has an effective jamming effect on the locating result of loose coupled integrated navigation; and 2 ）The bias in integrated navigation at the present moment is affected by the former bias and GPS deception bias at the present moment synchronously, and the former bias has greater weight.

关 键 词：GPS诱骗 转发时延 组合导航 卡尔曼滤波 

分 类 号：TN972[电子电信—信号与信息处理]