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针对现有卫星导航信号模拟器无法逼真模拟飞机精确运动信息的问题展开了相应的研究.基于椭球的大地问题正反解研究了大圆航线的模拟方法,给出了模拟大圆航线的计算模型.并将飞机作为实际刚体给出了包含三维姿态信息的全过程飞机航迹模拟方法.在此基础上编制了相应的仿真演示程序,实现了航路参数的动态设置.仿真结果表明本文提出的航迹模拟方法可以准确而全面的模拟飞机实际的运动特性,并能够为相应的导航系统研究提供支持.“,”In the paper, the fact that the existing satellite navigation signals' simulators can not accurately simulate realistic motion information of an aircraft is researched. Based on the solution of inverse and direct problem of earth ellipsoid, a great circle route calculation model is presented. Considering the actual aircraft the entire process of the aircraft flight path simulation which includes three-dimensional attitude information is given. Based on this, a simulation demonstration program is designed to set dynamically route parameters. The simulation has shown that the proposed simulation method is used to accurately track and simulate the actual motion characteristics of an aircraft so as to support the research on other corresponding navigation system.