Results 1 to 10 of about 28,228 (141)

Accuracy of a Real-Time, Computerized, Binocular, Three-Dimensional Trajectory-Tracking Device for Recording Functional Mandibular Movements. [PDF]

open access: yesPLoS ONE, 2016
Developments in digital technology have permitted researchers to study mandibular movements. Here, the accuracy of a real-time, computerized, binocular, three-dimensional (3D) trajectory-tracking device for recording functional mandibular movements was ...
Tian Zhao   +5 more
doaj   +5 more sources

Three‐dimensional trajectory tracking of an underactuated AUV based on fuzzy dynamic surface control [PDF]

open access: yesIET Intelligent Transport Systems, 2020
The three‐dimensional trajectory tracking of an underactuated autonomous underwater vehicle (AUV) under the complex unknowns including model uncertainties and time‐varying disturbances is studied.
Xiao Liang   +4 more
doaj   +2 more sources

Three-dimensional trajectory tracking for underactuated AUVs with bio-inspired velocity regulation

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2018
This paper attempts to address the motion parameter skip problem associated with three-dimensional trajectory tracking of an underactuated Autonomous Underwater Vehicle (AUV) using backstepping-based control, due to the unsmoothness of tracking ...
Jiajia Zhou   +3 more
doaj   +2 more sources

Three-Dimensional Trajectory Tracking Control for Stratospheric Airship Based on Deep Reinforcement Learning

open access: yesInternational Journal of Aerospace Engineering
The stratospheric airship is a low-speed aircraft capable of remaining in near space for extended periods. It can transport payloads to perform various tasks, including intelligence gathering, reconnaissance, and surveillance. Trajectory tracking control
Xixiang Yang   +3 more
doaj   +2 more sources

An Improved Backstepping-Based Controller for Three-Dimensional Trajectory Tracking of a Midwater Trawl System [PDF]

open access: yesJournal of Control Science and Engineering, 2016
An improved backstepping control method for three-dimensional trajectory tracking of a midwater trawl system is investigated. A new mathematical model of the trawl system while considering the horizontal expansion effect of two otter boards is presented ...
Zhao Yan, Yun sheng Mao, Cheng gang Liu
doaj   +2 more sources

Predefined-Time Three-Dimensional Trajectory Tracking Control for Underactuated Autonomous Underwater Vehicles

open access: yesApplied Sciences
This paper addresses the three-dimensional trajectory tracking problem of underactuated autonomous underwater vehicles (AUVs) operating in the presence of external disturbances and unmodeled dynamics by proposing a predefined-time adaptive control scheme.
Jinzhong Wen, Jing Zhang, Guoyan Yu
doaj   +2 more sources

Three-Dimensional Trajectory Tracking for Underactuated Quadrotor-like Autonomous Underwater Vehicles Subject to Input Saturation

open access: yesJournal of Marine Science and Engineering
This paper focuses on the design of a three-dimensional trajectory tracking controller for underactuated quadrotor-like autonomous underwater vehicles (QAUVs) subject to actuator saturation.
Chunchun Cheng   +5 more
doaj   +2 more sources

Simulation and verification of an adaptive S-plane three-dimensional trajectory tracking control for autonomous underwater vehicles

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveThis paper aims to study the problem of nonlinear six-degrees-of-freedom (DOFs) autonomous underwater vehicle (AUV) trajectory tracking. MethodsTo this end, the line-of-sight (LOS) guidance law of three-dimensional trajectory with variable ...
Wenkui LI   +3 more
doaj   +1 more source

Electromagnetic Actuation for a Micro/Nano Robot in a Three-Dimensional Environment

open access: yesMicromachines, 2022
Micro/nanorobots have several potential biomedical applications, such as drug delivery, minimal invasiveness, and moving within narrow and complex areas.
Mostafa Abdelaziz, Maki Habib
doaj   +1 more source

Embedded inertial sensor for tracking projectile impact on granular media [PDF]

open access: yesEPJ Web of Conferences, 2021
Due to the opacity of most granular materials, it is often desirable to have three dimensional (3D) particle tracking techniques beyond optical imaging to explore granular dynamics.
Köstler Stefan   +4 more
doaj   +1 more source

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