| 非奇异终端滑模导引律 |
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| 引用本文： | 王钊,李世华,费树岷.非奇异终端滑模导引律[J].东南大学学报(自然科学版),2009(Z1). |
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| 作者姓名： | 王钊 李世华 费树岷 |
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| 作者单位： | 东南大学自动化学院;东南大学复杂工程系统测量与控制教育部重点实验室;中国石油大学(华东)信息与控制工程学院; |
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| 基金项目： | 航空科学基金资助项目(20080769006) |
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| 摘 要： | 针对拦截机动目标问题,提出了一种基于非奇异终端滑模技术的导引律.非奇异终端滑模面同时包含目标视线角速度和期望的目标视线角2种信息.通过引入非线性滑模面改善系统的收敛特性,可实现闭环系统状态的有限时间收敛,并可大幅度改善系统性能.目标视线角速度在有限时间内收敛到0,可以满足导弹对目标零脱靶量的要求;目标视线角在有限时间内到达期望值,可以保证导弹击中目标时的姿态.将目标加速度机动作为未知的有界扰动,利用变结构控制的不变性,使制导律对目标机动具有鲁棒性.该导引律形式简单,易于工程实现.对2种不同的目标机动进行仿真,结果表明该方法具有强的鲁棒性,可以保证较高的制导精度.
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| 关 键 词： | 变结构控制 有限时间控制 导引律 机动目标 |
Nonsingular terminal sliding mode guidance law |
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| Wang Zhao, Li Shihua, Fei Shumin,Dongying ,China.Nonsingular terminal sliding mode guidance law[J].Journal of Southeast University(Natural Science Edition),2009(Z1). |
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| Authors: | Wang Zhao Li Shihua Fei Shumin Dongying China |
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| Institution: | Wang Zhao1,2,3 Li Shihua1,2 Fei Shumin1,2(1School of Automation,Southeast University,Nanjing 210096,China)(2Key Laboratory of Measurement , Control of Complex Systems of Engineering,Ministry of Education,China)(3College of Information , Control Engineering,China University of Petroleum(East China),Dongying 257061,China) |
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| Abstract: | In order to intercept maneuvering targets,a guidance law based on nonsingular terminal sliding mode(NTSM) technique is presented.The proposed NTSM contains the line-of-sight(LOS) angular rate and a desired LOS angular.Through introducing the nonlinear sliding mode surface to improve the convergent characteristics of the system,the states of the closed-loop system can be converged to the origin in finite time and the system performance is improved greatly.The LOS angular rate is nullified in finite time to g... |
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| Keywords: | variable structure control finite time control guidance law maneuvering target |
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