基于阻力加速度倒数剖面的再入轨迹规划与制导方法

doi:10.7527/S1000-6893.2018.22558

电子电气工程与控制

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基于阻力加速度倒数剖面的再入轨迹规划与制导方法

黄汉斌, 梁禄扬, 杨业

北京航天自动控制研究所, 北京 100854

收稿日期:2018-07-20 修回日期:2018-08-13 出版日期:2018-12-15 发布日期:2018-10-31
通讯作者: 杨业 E-mail:yangtzger@126.com

Reentry trajectory planning and guidance method based on inverse drag acceleration

HUANG Hanbin, LIANG Luyang, YANG Ye

Beijing Aerospace Automatic Control Institute, Beijing 100854, China

Received:2018-07-20 Revised:2018-08-13 Online:2018-12-15 Published:2018-10-31

摘要/Abstract

摘要： 针对升力式飞行器再入制导问题，提出了一种基于阻力加速度倒数剖面的在线解析规划与制导方法。首先将过程和终端约束转换成阻力加速度倒数形式的飞行走廊，采用三次样条函数描述倒数剖面。然后通过解析计算航程上下界，利用待飞航程在倒数剖面内的近似线性关系，以满足待飞航程为目标，迭代计算得到阻力加速度倒数剖面；在飞行过程中根据当前状态和实际待飞航程，周期性更新阻力加速度倒数剖面。通过对阻力加速度剖面的跟踪进行纵向制导，解算倾侧角指令；通过倾侧角反向来进行侧向制导，限制航向角偏差。实现了再入轨迹的在线快速生成与更新，并利用阻力加速度动态特性，将其与跟踪制导结合，提出的方法效率高，适应性强，有工程应用的潜力。

关键词: 再入飞行, 阻力加速度倒数, 轨迹规划, 轨迹更新, 跟踪制导

Abstract: To address the entry guidance problem for the lifting vehicle, an online analytical planning and guidance method for the reentry trajectory based on the inverse drag acceleration corridor is proposed. The path constraints and terminal constraints are transformed into the inverse drag acceleration corridor described by cubic spline functions. Since the range-to-go is approximately linear in the inverse corridor, the feasible drag acceleration profile is solved analytically and updated linearly with the boundary of inverse drag acceleration. For the longitudinal tracking guidance, the guidance law (the magnitude of the bank angle) is calculated by the dynamic error characteristic of drag acceleration. For the lateral guidance, azimuth deviation is restricted by the bank angle reverse. The fast generation and update of reentry trajectory are realized online, and the method is combined with the tracking guidance technique by using the dynamic characteristics of drag acceleration. The proposed method has high computational efficiency and strong adaptability, showing potentials for engineering application.

Key words: entry flight, inverse drag acceleration, trajectory planning, trajectory update, tracking trajectory

中图分类号:

V448.235

黄汉斌, 梁禄扬, 杨业. 基于阻力加速度倒数剖面的再入轨迹规划与制导方法[J]. 航空学报, 2018, 39(12): 322558-322558.

HUANG Hanbin, LIANG Luyang, YANG Ye. Reentry trajectory planning and guidance method based on inverse drag acceleration[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(12): 322558-322558.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

基于阻力加速度倒数剖面的再入轨迹规划与制导方法

Reentry trajectory planning and guidance method based on inverse drag acceleration

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