系统工程与电子技术 ›› 2023, Vol. 45 ›› Issue (7): 2150-2157.doi: 10.12305/j.issn.1001-506X.2023.07.26

• 制导、导航与控制 • 上一篇    下一篇

大气层内助推段广义标控脱靶量解析制导律

赵石磊1,2, 陈万春1, 杨良1,*, 冯卓2   

  1. 1. 北京航空航天大学宇航学院, 北京 100191
    2. 北京控制与电子技术研究所, 北京 100038
  • 收稿日期:2022-06-13 出版日期:2023-06-30 发布日期:2023-07-11
  • 通讯作者: 杨良
  • 作者简介:赵石磊(1994—), 男,工程师,博士,主要研究方向为飞行器弹道规划、制导与控制
    陈万春(1964—),男,教授,博士,主要研究方向为导弹飞行力学与控制、导弹总体设计、导弹攻防对抗和效能评估
    杨良(1985—),男,副教授,博士,主要研究方向为飞行器弹道规划、制导与控制
    冯卓(1995—),男,工程师,硕士,主要研究方向为飞行器控制系统
  • 基金资助:
    国家自然科学基金(62003019)

Analytical generalized nominal effort miss guidance law for endo-atmosphere boost phase

Shilei ZHAO1,2, Wanchun CHEN1, Liang YANG1,*, Zhuo FENG2   

  1. 1. School of Astronautics, Beihang University, Beijing 100191, China
    2. Beijing Institute of Control and Electronic Technology, Beijing 100038, China
  • Received:2022-06-13 Online:2023-06-30 Published:2023-07-11
  • Contact: Liang YANG

摘要:

针对大气层内助推段的制导问题,提出了一种适用于多级助推器的广义标控脱靶量解析制导律。首先,给出了满足终端弹道倾角和高度约束的最优标控攻角曲线的求解方法。利用弹道解析解可将助推段动力学约束转换为关于插值节点处攻角值的函数,以此将攻角曲线优化问题离散为非线性规划问题, 并通过序列二次规划可求得其最优解。之后,在每个制导周期,基于当前状态量解析预测标控攻角曲线下的广义标控脱靶量;为了闭环修正终端误差,利用线性二次型最优控制推导了解析形式的制导指令修正量,其可表示为广义标控脱靶量的线性组合。仿真结果表明,该制导方法不仅所需过载小,且制导精度高,适用范围广。

关键词: 大气层内助推段, 助推段制导律, 广义标控脱靶量, 弹道解析解

Abstract:

An analytical generalized nominal miss distance guidance law suitable for multi-stage booster is proposed for the endo-atmospheric boost guidance. Firstly, the optimal nominal angle of attack curve satisfied the terminal flight-path angle and altitude constraints is given. Using the analytical solution of boost trajectory, the dynamical constraint is enforced by the arbitrary angle of attack values discretized in Chebyshev-Gauss-Legendre points. Therefore, the optimal angle of attack problem is discretized into the nonlinear programming problem and its solution can be derived by sequential quadratic programming. Then, in each guidance cycle, the generalized nominal effort miss (GNEM) is predicted analytically based on the current states. The linear quadratic optimal control is used to derive the analytical guidance correction, which can be expressed as a linear combination of the GNEM. The simulation results show that the proposed method not only performs well in providing the small guidance command, but also has high guidance accuracy and great applicability.

Key words: endo-atmosphere boost phase, guidance law for boost phase, generalized nominal effort miss (GNEM), trajectory analytical solution

中图分类号: