地形跟随飞行轨迹设计与仿真验证  

Design and Simulation of Terrain Following Flight Path

作　　者：陈楸[1] 杨文萍[1] 朱红铃[1] 

机构地区：[1]西北工业大学无人机特种技术国防科技重点实验室,陕西西安710065

出　　处：《计算机仿真》2012年第3期113-116,共4页Computer Simulation

摘　　要：研究优化低空突防地形跟随飞机过顶时的飞行轨迹,飞行要求稳定性和快速性,减小超调,实现地形跟随飞机"平飞推跃"过顶。为达到理想地形跟随轨迹,提出设计抑制函数,建立某型飞机的数学仿真模型,搭建控制航迹倾角的地形跟随系统结构,在MATLAB软件平台上对抑制函数进行仿真,结果表明,采用抑制函数能够减小过顶超调,缩短暴露时间,实现"平飞推跃"过顶,改善了飞机过顶综合性能。证明所设计的抑制函数能够满足地形跟随需要,并优化了过顶跟随轨迹动态性能。To improve and optimize the flying path of terrain following fight in low altitude penetration,this paper designed a new stay function according to the perfect terrain following path and showed the concrete method of designing.Then the simulation model and system structure of terrain following were built up,and also the software MATLAB/Simulink was adapted to verify the above mentioned stay function in terrain following algorithm.The results indicate that this stay function can help to decrease the overshoot and condense the exposure time,so the plane can fly over the peaks with zero peaks.It also proves that the designed stay function can satisfy the need of terrain following and refine the following path.

关 键 词：地形跟随 抑制函数 建模与仿真 

分 类 号：V411.8[航空宇航科学与技术—航空宇航推进理论与工程]