Sliding-mode-observer-based Robust Variable Structure Control for Integrated Autopilot-guidance

doi:10.3969/j.issn.1000-1093.2017.02.006

Abstract

Abstract: A novel sliding-mode-observer-based variable structure controller is proposed and proved by Lyapunov’s theorem for integrated guidance and control(IGC) synthesis for extended range guided projectiles (ERGP) in order to realize hit-to-kill interception with limited measurement. Accounting for the short-period dynamics of the ERGPs and first-order lag of the canard servo, the two-loop IGC model is formulated in the presence of the discrepancies from aerodynamic parameters and target maneuver. The outer-loop of the IGC generates the commanded pitch rate to regulate the line-of-sight (LOS) rate to zero in finite time; the inner-loop is designed to track the outer-loop command. Simulation results show the effectiveness of the proposed controller and that the acceleration requirement is reduced. Key

Key words: ordnancescienceandtechnology, extendedrangeguidedprojectile, integratedguidanceandcontrol, slidingmodeobserver, variablestructurecontrol

CLC Number:

TJ413⁺.6

YANG Jing， WANG Xu-gang， WANG Zhong-yuan， CHANG Si-jiang. Sliding-mode-observer-based Robust Variable Structure Control for Integrated Autopilot-guidance[J]. Acta Armamentarii, 2017, 38(2): 246-253.

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第38卷
第2期2017 年2月兵工学报ACTA
ARMAMENTARIIVol.38No.2Feb.2017

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