CAJ | 학술논문

在飞机编队飞行时，成员间的相对位置信息是实现系统协同作战的重要保证，为了提高机群编队飞行的相对导航定位精度，在无地面基准的机群编队飞行JTIDS/GPS/TACAN/IFDL组合的相对导航系统中，采用交互式多模型扩展卡尔曼滤波（ IMM-EKF）算法，设计实现了多传感器相对导航系统，克服了飞机动态模型参数变化导致使用单一动态模型滤波精度下降的问题。仿真分析结果表明，交互式多模型算法可以提高相对导航系统的定位精度和可靠性，特别在GPS可见卫星很少的情况下，依然能够具有良好的定位性能。
재비궤편대비행시，성원간적상대위치신식시실현계통협동작전적중요보증，위료제고궤군편대비행적상대도항정위정도，재무지면기준적궤군편대비행JTIDS/GPS/TACAN/IFDL조합적상대도항계통중，채용교호식다모형확전잡이만려파（ IMM-EKF）산법，설계실현료다전감기상대도항계통，극복료비궤동태모형삼수변화도치사용단일동태모형려파정도하강적문제。방진분석결과표명，교호식다모형산법가이제고상대도항계통적정위정도화가고성，특별재GPS가견위성흔소적정황하，의연능구구유량호적정위성능。
The information of relative position between the members is an important guarantee to realize the system coordinated operations in aircraft formation flying .In order to improve the relative navigation positioning accuracy , this paper discusses JTIDS/GPS/TACAN/IFDL integrated navigation system with-out geographical position reference for aircraft formation flying .Interacting multiple model Extended Kal-man Filter ( IMM-EKF) is proposed to realize multi-sensor integrated relative navigation system , which can overcome the problem of descending filtering precision of filter with single fixed parameter .The simu-lation result shows that IMM-EKF method can improve the positioning accuracy and reliability in relative navigation system , and it still be able to perform well specially in the case of few visible GPS satellites .