基于有限时间收敛干扰观测器的探导控一体化设计

doi:10.12305/j.issn.1001-506X.2021.05.21

Abstract

Abstract:

Aiming at the roll-pitch semi strapdown homing missile, a sliding mode controller for integrated design of detection guidance and control based on finite time disturbance observer (FTDO) is proposed. Firstly, based on the dynamic model of roll-pitch semi strapdown seeker and guidance and control model of the missile, the whole state coupling integrated control model of detection guidance and control is established. In the model, the uncertainty and error are regarded as disturbance, and the disturbance is estimated by finite time disturbance observer. The block backstepping sliding mode control law is designed for the integrated model of detection guidance and control, and the stability of controller is verified. Simulation results show that the integrated control method improves the response ability of missile to target maneuver and the stability of target tracking, which achieves a smaller miss distance than the traditional cascade control method.

Key words: disturbance observer, sliding mode control, integrated detection guidance and control, roll-pitch, semi stapdown

CLC Number:

TP273
TJ765

Yuekun ZHANG, Xiaohong JIA, Xiaoyang ZHANG, Weiqiang WANG. Integrated design of detection guidance and control based on finite time disturbance observer[J]. Systems Engineering and Electronics, 2021, 43(5): 1326-1334.

Figures/Tables 7

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References 24

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仿真条件	设置数值
导弹速度/(m/s)	800
导弹弹道倾角/(°)	5
导弹弹道偏角/(°)	0
弹体俯仰角/(°)	0
弹体偏航角/(°)	0
弹体滚转角/(°)	0
导弹攻角/(°)	5
导弹侧滑角/(°)	0
目标速度/(m/s)	400
目标弹道倾角/(°)	180
目标弹道偏角/(°)	0
相对距离/km	10
视线倾角/(°)	5
视线偏角/(°)	0
目标机动	幅值为3g的方波机动

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Integrated design of detection guidance and control based on finite time disturbance observer

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