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Impact Time Guidance Law Considering Autopilot Dynamics Based on Variable Coefficients Strategy for Maneuvering Target

机译：基于变系数策略的机动目标考虑自动驾驶动力学的撞击时间制导律

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摘要

This paper investigates the terminal guidance problem for the missile intercepting a maneuvering target with impact time constraint. An impact time guidance law based on finite time convergence control theory is developed regarding the target motion as an unknown disturbance. To further improve the performance of the guidance law, an autopilot dynamics which is considered as a first-order lag is taken into consideration. In the proposed method, the coefficients change with the relative distance between missile and target. This variable coefficient strategy ensures that the missile impacts the target at the desired time with little final miss distance. Then it is proved that states of the guidance system converge to sliding mode in finite time under the proposed guidance law. Numerical simulations are presented to demonstrate the effectiveness of the impact time guidance law with autopilot dynamics (ITGAD).
机译：研究了导弹拦截具有冲击时间约束的机动目标的末制导问题。基于目标运动为未知扰动，建立了基于有限时间收敛控制理论的冲击时间导引律。为了进一步提高制导律的性能，考虑了自动驾驶动力学，它被视为一阶滞后。在所提出的方法中，系数随导弹与目标之间的相对距离而变化。这种可变系数策略可确保导弹在所需时间以最小的最终失误距离撞击目标。然后证明了在所提出的制导律下，制导系统的状态在有限的时间内收敛到滑模。提出了数值模拟，以证明自动驾驶仪动力学（ITGAD）的冲击时间指导律的有效性。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第11期|815149.1-815149.10|共10页
  • 作者

    Shang Wei; Guo Jie; Tang Shengjing; Ma Yueyue; Zhang Yao;

  • 作者单位

    Beijing Inst Technol, Key Lab Dynam & Control Flight Vehicle, Minist Educ, Sch Aerosp Engn, Beijing 100081, Peoples R China.;

    Beijing Inst Technol, Key Lab Dynam & Control Flight Vehicle, Minist Educ, Sch Aerosp Engn, Beijing 100081, Peoples R China.;

    Beijing Inst Technol, Key Lab Dynam & Control Flight Vehicle, Minist Educ, Sch Aerosp Engn, Beijing 100081, Peoples R China.;

    Beijing Inst Technol, Key Lab Dynam & Control Flight Vehicle, Minist Educ, Sch Aerosp Engn, Beijing 100081, Peoples R China.;

    Beijing Inst Technol, Key Lab Dynam & Control Flight Vehicle, Minist Educ, Sch Aerosp Engn, Beijing 100081, Peoples R China.;

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