Three-dimensional adaptive fixed-time guidance law against maneuvering targets with impact angle constraints and control input saturation. (May 2022)

• Record Type: Journal Article
• Authors: Ma, Fei; Wu, Yunjie; Wang, Siqi; Yang, Xiaofei; Hua, Yueyang
• Is Part Of: Transactions of the Institute of Measurement and Control. Volume 44:Number 8(2022)
• Page Start: 1579
• Page End: 1598
• Publication Date: 2022-05
• Subjects: Adaptive control -- disturbance observer -- fixed-time control -- sliding mode control -- three-dimensional guidance; Automatic control -- Periodicals; Measuring instruments -- Periodicals; Commande automatique -- Périodiques; Mesure -- Instruments -- Périodiques; 681.2
• DOI: 10.1177/01423312211059864
• Languages: English
• ISSNs: 0142-3312

Abstract

This paper presents an adaptive fixed-time guidance law for the three-dimensional interception guidance problem with impact angle constraints and control input saturation against a maneuvering target. First, a coupled guidance model formulated by the relative motion equation is established. On this basis, a fixed-time disturbance observer is employed to estimate the lumped disturbances. With the help of this estimation technique, the adaptive fixed-time sliding mode guidance law is designed to accomplish accurate interception. The stability of the closed-loop guidance system is proven by the Lyapunov method. Simulation results of different scenarios are executed to validate the effectiveness and superiority of the proposed guidance law.