电光与控制, 2017, 24 (4): 93, 网络出版: 2021-01-25
模糊滑模控制在CAV再入标准轨迹制导中的应用
Application of Fuzzy Sliding Mode Control in Reentry Trajectory Guidance of CAV
高超声速 标准轨迹制导 模糊逼近 切换控制律 误差补偿 hypersonic velocity standard trajectory guidance fuzzy approximation sw让ching control law error compensation CAV CAV
摘要
针对CAV再入标准轨迹制导问题, 提出了一种新的基于模糊滑模的纵向轨迹制导方案, 根据CAV状态模型的特点和模糊系统设计要求, 对其纵向运动学方程进行了简化处理, 设计了模糊逼近+切换控制律补偿的控制器, 利用模糊系统的万能逼近特性来对倾侧角增量进行逼近, 用切换控制率来补偿逼近误差。仿真验证了该方案能够实现对纵向轨迹的精确跟踪, 且具有较好的鲁棒性和实时性。
Abstract
Aimed at standard trajectory guidance for reentry of the Common Aero Vehicle (CAV), a new longitudinal trajectory guidance law was put forward based on the fuzzy sliding mode control. The longitudinal kinematical equation was reduced according to the characteristics of the CAV state model and the design requirements of fuzzy system. A control law combining fuzzy approximation with switching control was designed to approximate the bank angle's increment and compensate for the approximation error. Simulation results proved that the scheme could implement precise tracking to the longitudinal trajectory with good robustness and real-time performance.
任洋, 刘子阳, 刘伟. 模糊滑模控制在CAV再入标准轨迹制导中的应用[J]. 电光与控制, 2017, 24(4): 93. REN Yang, LIU Zi-yang, LIU Wei. Application of Fuzzy Sliding Mode Control in Reentry Trajectory Guidance of CAV[J]. Electronics Optics & Control, 2017, 24(4): 93.