Standard trajectory guidance for CAV reentry based on fuzzy sliding mode control
-
摘要: 针对标准轨迹制导对状态初值过于敏感以及鲁棒性较差的问题,在模糊滑模控制的基础上,提出了一种新的标准轨迹制导方式.通过滑模控制的鲁棒性来提升制导方法的适应能力,利用模糊系统的万能逼近特性来对不确定因素进行逼近,从而实现对不确定项的准确估计.对隶属度函数的建立原则进行了分析, 结合再入特点建立了模糊滑模纵向制导方案,仿真结果验证了模糊逼近与状态反馈总控制律的有效性,在此基础上设计了侧向制导律.仿真结果表明:该方法能够在保证精度的同时提高标准轨迹制导的鲁棒性,使计算过程大大简化.Abstract: For the question that the standard trajectory guidance was too sensitive to initial value of state and robustness was worse, a new standard trajectory guidance method based on the fuzzy sliding mode control was proposed. The robustness of sliding mode control was used to improve the adaptive capacity of guidance method, in order to definitely estimate the uncertain factors, the universal approximation property of fuzzy system was used to approach uncertain factors. Through analyzing the determinate principle of membership function combined with the characteristics of reentry process, the longitudinal guidance law was established, the simulation results validate that the master control law combined fuzzy approximation with state feedback is effective. And the lateral guidance law was designed based on the scheme mentioned before. Numerical simulation results show that this method can not only ensure a high precision but also improve the robustness of standard trajectory guidance law, and simplify the calculation process greatly.
-
[1] Mease K D.Reduced-order entry trajectory planning for acceleration guidance[J].Journal of Guidance,Control and Dynamics,2002,25(2):257-266. [2] Mease K D.Design and evaluation of an acceleration guidance algorithm for entry[J].Journal of Guidance,Control and Dynamics,2004,41(6):986-996. [3] 雍恩米.高超声速滑翔式再入飞行器轨迹优化与制导方法研究[D].长沙:国防科技大学,2008.Yong E M.Study of hypersonic glide-reentry vehicle for trajectory optimization and guidance method[D].Changsha:National University of Defense Technology,2008(in Chinese) [4] Shen Z J,Ping L.Dynamic lateral entry guidance logic[J].Journal of Guidance,Control and Dynamics,2004,27(6):949-959. [5] Zuo J S,Ping L.On-board generation of three-dimensional constrained entry trajectories[J].Journal of Guidance,Control,and Dynamics,2003,26(1):111-121. [6] 刘君,陈克俊,汤国建.基于广义标准轨迹的平衡滑翔状态反馈制导方法[J].国防科技大学学报,2012,34(2):134-140.Liu J,Chen K J,Tang G J.Equilibrium glide for state feedback guidance method based on generalized standard trajactory[J].Journal of National University of Defense Technology,2012,34(2):134-140(in Chinese). [7] Yaghmaee M H,Menhaj M B,Safavi M.A novel FLC-based approach for ATM traffic control[J].Computer Networks,2011,36(5-6):643-658. [8] Wu S F,Engelen C J H,Babuska R,et al.Fuzzy logic based full envelope autonomous flight control for an atmospheric re-entry spacecraft[J].Control Engineering Practice,2003,11(1):11-25. [9] 国海峰,黄长强,丁达理,等.考虑随机干扰的高超声速滑翔飞行器轨迹优化[J].北京航空航天大学学报,2014,40(9):1281-1290.Guo H F,Huang C Q,Ding D L,et al.Trajectory optimization for hypersonic gliding vehicle considering stochastic disturbance[J].Journal of Beijng University of Aeronautics and Astronautics,2014,40(9):1281-1290(in Chinese). [10] Ghasemi A,Moradi M,Menhaj M B.Adaptive fuzzy sliding mode control design for a low-lift reentry vehicle[J].Journal of Aerospace Engineering,2012,25(2):210-216. [11] 刘金琨.滑模变结构控制[M].北京:清华大学出版社,2012:110-116.Liu J K.Sliding mode control design[M].Beijing:Tsinghua University Press,2012:110-116(in Chinese). [12] 张化光,何希勤.模糊自适应控制理论及其应用[M].北京:北京航空航天大学出版社,2002:56-60.Zhang H G,He X Q.Fuzzy adaptive control theory and application[M].Beijing:Beihang University Press,2002:56-60(in Chinese). [13] 席爱民.模糊控制技术[M].西安:西安电子科技大学出版社,2008:120-128.Xi A M.Technology of fuzzy control[M].Xi'an:Press of Xidian University,2008:120-128(in Chinese). [14] 赵霞,姜玉宪,吴云洁,等.基于多模态滑模的快速非奇异终端滑模控制[J].北京航空航天大学学报,2011,37(1):110-113.Zhao X,Jiang Y X,Wu Y J,et al.Fast nonsingular terminal sliding mode control based on multi slide mode[J].Journal of Beijng University of Aeronautics and Astronautics,2011,37(1):110-113(in Chinese). [15] 李菁菁,任章,沈振.高超声速滑翔飞行器的分散鲁棒姿态控制[J].北京航空航天大学学报,2012,38(9):1194-1199.Li J J,Ren Z,Shen Z.Design of decentralized robust attitude controller for hypersonic sliding vehicles[J].Journal of Beijng University of Aeronautics and Astronautics,2012,38(9):1194-1199(in Chinese).
点击查看大图
计量
- 文章访问数: 900
- HTML全文浏览量: 86
- PDF下载量: 556
- 被引次数: 0