Results 11 to 20 of about 1,128,948 (299)

Impact-Angle-Control Guidance Law with Terminal Constraints on Curvature of Trajectory

open access: yesMathematics, 2023
This paper presents an impact-angle-control guidance law with terminal constraints on the curvature of the missile trajectory. The formulation takes into account nonlinear kinematics and time-varying velocity, allowing for more general cases in which the
Kyoung-Rok Song, In-Soo Jeon
doaj   +1 more source

Impact Angle Control Guidance Law Considering the Seeker’s Field-of-View Constraint Applied to Variable Speed Missiles

open access: yesIEEE Access, 2020
Recently, multiple constraints have been considered in the design of guidance laws. Most of the existing impact angle control guidance laws considering the seeker's field-of-view constraint are only applicable to constant speed missiles and have other ...
Shou Zhou   +3 more
doaj   +1 more source

Impact Angle Control Guidance Law With Seeker’s Field-of-View Constraint Based on Logarithm Barrier Lyapunov Function

open access: yesIEEE Access, 2020
In recent years, the strapdown system has become the significant trend of the development of precision guided weapons. In order to effectively hit the lightly armored targets, researchers have done a series of studies on the impact angle control. However,
Shou Zhou, Shifeng Zhang, Donghui Wang
doaj   +1 more source

Integral Global Sliding Mode Guidance for Impact Angle Control [PDF]

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 2019
This paper proposes a new guidance law based on integral sliding mode control (ISMC) technique for maneuvering target interception with impact angle constraint. A time-varying function weighted line-of-sight error dynamics, representing the nominal guidance performance, is introduced first.
Shaoming He, Defu Lin, Jiang Wang
openaire   +3 more sources

Bezier-curve Navigation Guidance for Impact Time and Angle Control [PDF]

open access: yesINCAS Bulletin, 2018
This paper addresses a novel impact time and angle control guidance law using a Bézier curve. The 2nd order Bézier curve consists of one control point and two boundary points; initial point P0, middle point P1 and end point P2.
Gun-Hee MOON   +2 more
doaj   +1 more source

Time-Varying Asymmetric Barrier Lyapunov Function-Based Impact Angle Control Guidance Law With Field-of-View Constraint

open access: yesIEEE Access, 2020
A prerequisite for implementing precision strike is to keep the target locked within the seeker’s field-of-view (FOV). To address this constraint, a novel impact angle control guidance law based on the dynamic surface control and time-varying ...
Jiayi Tian   +3 more
doaj   +1 more source

Adaptive Sliding Mode Guidance With Impact Time and Angle Constraints

open access: yesIEEE Access, 2020
Based on adaptive sliding mode control method, this paper considers the interception problem to deal with both impact time and angle constraints. The stability and convergence characteristic of proposed guidance law are analyzed.
Xiaodong Liu, Guofei Li
doaj   +1 more source

Effect of Phosphate Group Addition on the Properties of Denture Base Resins [PDF]

open access: yes, 2008
Statement of problem Acrylic resins are prone to microbial adherence, especially by Candida albicans. Surface-charged resins alter the ionic interaction between the denture resin and Candida hyphae, and these resins are being developed as a means to ...
Berzins, David W.   +6 more
core   +2 more sources

Definition of Impact Angle and Impact Angle Control Law Against Maneuvering Target

open access: yesJournal of the Korean Society for Aeronautical & Space Sciences, 2015
In this paper, a guidance law for intercepting maneuvering target with a desired impact angle is proposed. The proposed guidance law is modified from the optimal impact angle control law for a fixed target and given by a biased PN law with the impact angle control term in addition to the conventional PN law.
Hyun-Seung Kim   +2 more
openaire   +2 more sources

Novel ring resonator-based integrated photonic beamformer for broadband phased array receive antennas - part I: design and performance analysis [PDF]

open access: yes, 2010
A novel optical beamformer concept is introduced that can be used for seamless control of the reception angle in broadband wireless receivers employing a large phased array antenna (PAA).
Bentum, Mark J.   +10 more
core   +10 more sources

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