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On-line optimization design of sliding mode guidance law with multiple constraints

机译：多约束滑模制导律的在线优化设计

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摘要

The design of terminal guidance law with impact angle constraint is required for air-to-ground guided weapons to increase their warhead effect. The variable structure guidance law that consists of diving plane guidance and turning plane guidance equations with impact angle constraint is derived, and the saturation function is introduced into the design of reaching law control to weaken the chattering of the guidance system. The influence of four guidance parameters (i.e., reaching law factor, switching item gain, angle error item factor, and boundary layer thickness) on guidance performance is studied and three typical constraints (i.e., heating rate, normal load factor, and dynamic pressure) are analyzed. An optimization model is established for this problem and the feasibility of on-line optimization on guidance law parameters by the Sequential Quadratic Programming (SQP) algorithm is discussed as well. Simulation results show that the on-line optimization of the derived guidance law not only satisfies specified constraints, but also minimizes the fuel cost during the flying course. Moreover, the optimization process can be completed in a few seconds so that it is suitable for on-board applications.
机译：空对地制导武器需要设计具有冲击角约束的终端制导律，以增加其弹头效应。推导了由俯冲平面制导和具有冲击角约束的转弯平面制导方程组成的变结构制导律，并将饱和函数引入到到达律控制的设计中，以减弱制导系统的抖动。研究了四个引导参数（即到达律因子，切换项增益，角度误差项因子和边界层厚度）对引导性能的影响，并给出了三​​个典型约束条件（即加热速率，法向载荷因子和动压力）被分析。建立了针对该问题的优化模型，并讨论了采用顺序二次规划（SQP）算法对制导律参数进行在线优化的可行性。仿真结果表明，所导出制导律的在线优化不仅满足规定的约束条件，而且使飞行过程中的燃料成本最小化。此外，优化过程可以在几秒钟内完成，因此适合于车载应用。

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  • 来源
    《Applied Mathematical Modelling》 |2013年第15期|7568-7587|共20页
  • 作者

    Q.Z. Zhang; Z.B. Wang; F. Tao; Bhaba R. Sarker;

  • 作者单位

    School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China;

    School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China;

    School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China;

    Department of Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803-6409, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sliding mode guidance; Multiple constraints; Impact angle; SQP; On-line optimization;

    机译：滑动模式指导;多重约束;冲击角SQP;在线优化;

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