Sliding Mode-Based Intercept Guidance with Uncertainty and Disturbance Compensation

Abstract

This paper presents a missile intercept guidance law that can account for uncertainty and disturbance. The proposed guidance law is developed based on a novel second order sliding surface, along with an uncertainty and disturbance estimator. The proposed sliding surface is invariant for the non-impact angle constraint case as well as the impact angle constraint case. The sliding surface guarantees finite time convergence of the line-of-sight (LOS) rate and (if specified) the LOS angle error, characterized by a simple function of time-to-go. Furthermore, the proposed strategy is also effective against a maneuvering target. The line-of-sight rate convergence property can be adjusted using only one parameter that makes the design process simple. Potential of the proposed guidance laws is demonstrated with some simulations.

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Computer networks; Convergence properties; Disturbance compensation; Finite-time convergence; Impact angle constraints; Line-of-sight rates; Maneuvering targets; Second order sliding; Uncertainty and disturbance estimators; Electronic guidance systems

International Standard Serial Number (ISSN)

0016-0032

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Elsevier, All rights reserved.

Publication Date

01 Nov 2015

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