飞行器轨迹发生器设计与仿真  

Design and simulation of aircraft trajectory generator

作　　者：朱奎宝 王惠杰 杜云 李炜 勾继民 ZHU Kuibao;WANG Huijie;DU Yun;LI Wei;GOU Jimin(School of Electrical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China)

机构地区：[1]河北科技大学电气工程学院,河北石家庄050018

出　　处：《现代电子技术》2022年第22期53-57,共5页Modern Electronics Technique

基　　金：军委科技委基础加强基金项目(2020-JCJQ-JJ-217);北京宇航系统工程研究所开放基金项目(Y20150)。

摘　　要：在导航技术研究中,惯性元件的输出是惯性导航系统仿真不可缺少的条件,为惯导系统仿真提供实时导航参数及惯性元件的精确值,并为其导航解算提供仿真测试数据和比较基准。通过对飞行器实地飞行过程进行测量得到元件的输出,存在成本高、周期长等问题,为此,文中引入轨迹发生器,将其作为导航系统仿真的输入。首先,介绍轨迹发生器的设计思路,根据导航坐标转换关系,由数学编排式推导飞行器飞行过程的轨迹参数;然后,通过对飞行器飞行状态的分析,定义不同飞行状态下轨迹的输入控制量,进而运用惯导原理逆向解算出元件输出,模拟飞行器理想飞行状态下的轨迹参数和元件输出;最后,对轨迹发生器的设计进行仿真,将仿真结果经过导航系统解算,验证轨迹发生器的正确性。结果表明,该轨迹发生器能够准确模拟飞行器的飞行轨迹,方法简单、高效、可行,可以解决难以实地获取导航系统飞行参数的难题。In the research of navigation technology,the output of inertial elements is an indispensable condition for the simulation of inertial navigation system.It can provide real-time navigation parameters and accurate values of inertial elements for the simulation of inertial navigation system,and provide simulation test data and comparison benchmark for its navigation solution.As the output of components obtained by measuring the field flight process of aircraft has problems of high cost and long period,the trajectory generator is introduced as the input device of navigation system simulation.The design idea of the trajectory generator is introduced.According to the transformation relationship of navigation coordinate,the trajectory parameters of the aircraft flight process are derived from the mathematical arrangement formulas.The flight state of the aircraft is analyzed,the input control quantities of the trajectory in different flight states are defined,and then the component output is inversely calculated by means of the inertial navigation principle to simulate the trajectory parameters and component output in the ideal flight state of the aircraft.The design of the trajectory generator is simulated,and the simulation results are solved by means of the navigation system to verify the correctness of the trajectory generator.The results show that the trajectory generator can accurately simulate the flight trajectory of the aircraft,and the method is simple,efficient and feasible.It can solve the problem that it is difficult to obtain the flight parameters of the navigation system in the field.

关 键 词：飞行器 轨迹发生器 惯性导航 飞行状态分析 轨迹参数推导 结果分析 

分 类 号：TN782-34[电子电信—电路与系统]