Journal ArticleDOI
Nonsingular Terminal Sliding Mode Guidance with Impact Angle Constraints
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In this paper, the authors proposed guidance laws to intercept targets at a desired impact angle, from any initial heading angle, without exhibiting any singularity, by selecting interceptor's lateral acceleration to enforce nonsingular terminal sliding mode on a switching surface designed using nonlinear engagement dynamics.Abstract:
Guidance laws based on a conventional sliding mode ensures only asymptotic convergence. However, convergence to the desired impact angle within a finite time is important in most practical guidance applications. These finite time convergent guidance laws suffer from singularity leading to control saturation. In this paper, guidance laws to intercept targets at a desired impact angle, from any initial heading angle, without exhibiting any singularity, are presented. The desired impact angle, which is defined in terms of a desired line-of-sight angle, is achieved in finite time by selecting the interceptor's lateral acceleration to enforce nonsingular terminal sliding mode on a switching surface designed using nonlinear engagement dynamics. Numerical simulation results are presented to validate the proposed guidance laws for different initial engagement geometries and impact angles. Although the guidance laws are designed for constant speed interceptors, its robustness against the time-varying speed of interceptors is also evaluated through extensive simulation results.read more
Citations
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Journal ArticleDOI
Nonsingular Sliding Mode Guidance for Impact Time Control
TL;DR: In this paper, a guidance problem for impact time control applicable to salvo attacks is considered based on the sliding mode control, and a positive continuous nonlinear function of the lead angle is introduced to the guidance command, which makes the Lyapunov stability negative semidefinite.
Journal ArticleDOI
Back-stepping active disturbance rejection control design for integrated missile guidance and control system via reduced-order ESO.
Shao Xingling,Wang Honglun +1 more
TL;DR: The effectiveness of the proposed IGC law in enhanced interception performance such as smooth interception course, improved robustness against multiple uncertainties as well as reduced control consumption during initial phase are demonstrated through simulations.
Journal ArticleDOI
Interception Angle Control Guidance Using Proportional Navigation with Error Feedback
TL;DR: In this article, the authors proposed a guidance law called interception angle control guidance (IACG) that provides the desired interception angle for a stationary or slowly moving target using proportional navigation guidance (PNG).
Journal ArticleDOI
Modified Pure Proportional Navigation Guidance Law for Impact Time Control
Namhoon Cho,Youdan Kim +1 more
TL;DR: In this paper, an analytic solution for the time-to-go of the pure proportional navigation guidance law against a stationary target is derived considering full nonlinear engagement kinematics without near-collision course approximation.
Journal ArticleDOI
Impact time guidance for large heading errors using sliding mode control
TL;DR: Sliding mode control-based impact time guidance laws are proposed, where the desired impact time is achieved by enforcing a sliding mode on a switching surface designed by using the concepts of collision course and estimated time-to-go.
References
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Book
Sliding mode control in electromechanical systems
TL;DR: Sliding mode control (SMC) is gaining increasing importance as a universal design tool for the robust control of linear and nonlinear systems as mentioned in this paper, and is particularly useful for electro-mechanical systems because of its discontinuous structure.
Journal ArticleDOI
Brief Non-singular terminal sliding mode control of rigid manipulators
Yong Feng,Xinghuo Yu,Zhihong Man +2 more
TL;DR: This paper presents a global non-singular terminal sliding mode controller for rigid manipulators to enable the elimination of the singularity problem associated with conventional terminal slide mode control.
Journal ArticleDOI
Sliding mode control on electro-mechanical systems
Vadim I. Utkin,Hao Chi Chang +1 more
TL;DR: In this article, it is shown that stability of zero dynamics should be taken into account when the regular form consists of blocks of second-order equations, and new theoretical methods are developed in the context of these studies: sliding made nonlinear observers, observers with binary measurements, parameter estimation in systems with sliding mode control.
Book
Sliding Mode Control in Electro-mechanical Systems
TL;DR: The design approach based on the regularization is generalized for mechanical systems and it is shown that stability of zero dynamics should be taken into account when the regular form consists of blocks of second-order equations.
Book ChapterDOI
Sliding mode control
TL;DR: The sliding mode control approach is recognized as an efficient tool to design robust controllers for complex high-order nonlinear dynamic plant operating under uncertain conditions as mentioned in this paper, and has received much more attention from the international control community within the last two decades.