基于大气预估的再入飞行器机动减速制导方法

doi:10.3969/j.issn.1000-1093.2013.09.006

兵工学报 ›› 2013, Vol. 34 ›› Issue (9): 1091-1096.doi: 10.3969/j.issn.1000-1093.2013.09.006

基于大气预估的再入飞行器机动减速制导方法

李强¹, 夏群利¹, 何镜², 温求遒¹

1. 北京理工大学宇航学院, 北京100081;2. 中国兵器科学研究院, 北京100089

收稿日期:2013-03-11 修回日期:2013-03-11 上线日期:2013-11-11
作者简介:李强(1986—),男,博士研究生。

Maneuvering-Deceleration Guidance Algorithm Based on Atmosphere Estimation for Reentry Vehicle

LI Qiang¹, XIA Qun-li¹, HE Jing²,WEN Qiu-qiu¹

1. School of Aerospace Engineering, Beijing Institute of Technology,Beijing 100081, China; 2. Ordnance Science Institute ofChina, Beijing 100089, China

Received:2013-03-11 Revised:2013-03-11 Online:2013-11-11

摘要/Abstract

摘要：

针对高超声速再入飞行器精确制导与减速控制一体化的需求,提出一种基于大气预估的再入飞行器机动减速制导方法。基于终端位置及落角约束推导得到制导指令闭合解,在此基础上针对终端速度约束,提出在制导上附加机动减速指令的机动减速制导形式。机动减速制导指令由制导指令和机动减速指令叠加生成,制导指令由包含终端位置及角度约束的最优制导律计算确定;机动减速采用对位置影响最小的正弦指令形式,通过数值预测终端速度偏差确定指令参数大小,并引入参数辨识技术实现预测模型大气偏差修正,提高终端速度预测精度。通过仿真验证了该方法能够在偏差条件下,保证制导精度并有效控制终端飞行速度,实现精确制导与减速控制的一体化设计。

关键词: 飞行器控制、导航技术, 再入飞行器, 机动目标, 精确制导, 减速控制, 大气预估

Abstract:

A new maneuvering-deceleration guidance algorithm based on atmosphere estimation is presented for the precise guidance and velocity control of hypersonic reentry vehicle. The maneuvering-deceleration guidance command is composed of optimal guidance command and deceleration command. The optimal guidance command is obtained by guidance law with position and impact angle constraints. Sinusoid aneuvering-deceleration command is used to minimize the position disturbance caused by deceleration. And the parameters of maneuvering command are produced from mismatch between terminal predicted velocity and nominal-velocity by numerical integration method. The atmosphere parameter identification technology is also used to improve the prediction precision. The simulation results show that the maneuvering-deceleration guidance algorithm has strong robustness against uncertain conditions; it can accomplish the integrated design of precise guidance and deceleration control efficiently.

Key words: control and navigation technology of aerocraft, reentry vehicle, maneuverable target, precision guidance, deceleration control, atmosphere estimation

中图分类号:

V412. 4

李强, 夏群利, 何镜, 温求遒. 基于大气预估的再入飞行器机动减速制导方法[J]. 兵工学报, 2013, 34(9): 1091-1096.

LI Qiang, XIA Qun-li, HE Jing,WEN Qiu-qiu. Maneuvering-Deceleration Guidance Algorithm Based on Atmosphere Estimation for Reentry Vehicle[J]. Acta Armamentarii, 2013, 34(9): 1091-1096.

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基于大气预估的再入飞行器机动减速制导方法

Maneuvering-Deceleration Guidance Algorithm Based on Atmosphere Estimation for Reentry Vehicle

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