CAJ | 학술논문

针对GPS/INS（Global Positioning System/Inertial Navigation System）组合导航中GPS 转发式干扰问题，在分析故障变化特性与故障诊断函数特性之间关系的基础上，提出了一种基于局部状态字2检验的方法。通过观测值的变化、观测模型的变化和χ2检验中x-1 k的变化论证了方法的可行性，并得出组合导航受到转发式干扰是判断系统发生故障的充分而非必要条件的结论。最后通过在仿真轨迹中加入诱偏来模拟转发式干扰，仿真实验证明该方法能够以较高的灵敏度和较高的准确性判断转发式干扰的发生。
침대GPS/INS（Global Positioning System/Inertial Navigation System）조합도항중GPS 전발식간우문제，재분석고장변화특성여고장진단함수특성지간관계적기출상，제출료일충기우국부상태자2검험적방법。통과관측치적변화、관측모형적변화화χ2검험중x-1 k적변화론증료방법적가행성，병득출조합도항수도전발식간우시판단계통발생고장적충분이비필요조건적결론。최후통과재방진궤적중가입유편래모의전발식간우，방진실험증명해방법능구이교고적령민도화교고적준학성판단전발식간우적발생。
For the problem of GPS/INS Integrated Navigation Repeater Jamming,a method based on partial states chi-square test is presented. This method is based on the relationship between analysis of the characteristics of fault changes and the characteristics of fault diagnosis function. According to Demonstrate the feasibility of the method via changes in the observed value,changes in the observed model,and state value changes in the chi-square test,it is concluded that Repeater Jamming is a unnecessary and sufficient condition for GPS/INS Integrated Navigation’s system fault. At last,by adding cajolery to simulation trajectory to simulate the Repeater Jamming,the simulation results show that this method can judge the occurrence of Repeater Jamming in high sensitivity and high accuracy.