使用了高度和航向航程匹配求解推重比的算法,解决了一种无直接解析解的参考轨迹的求解问题.在数值仿真的基础上,简化了参考轨迹的求解,给出了推重比与高度和航向航程的关系,以及这些关系存在的原因.应用Monte Carlo仿真法对该方法求解的可行性进行了仿真验证,并基于一个类Apollo的参考轨迹,验证了算法对参数分布引起的状态不定具有鲁棒性. The method of solving the reference trajectory without direct analytic solution is solved by using the algorithm of height and heading matching to solve the reference trajectory.On the basis of numerical simulation, the solution of reference trajectory is simplified, The course of the course and the reason of the existence of these relations.The Monte Carlo simulation method is used to verify the feasibility of the method and the model is based on the reference trajectory of a class Apollo to verify the uncertainty of the state of the algorithm caused by the distribution of parameters Great.