Results 11 to 20 of about 60,284 (266)
Brodogradnja, 2020 In this paper, a nonlinear adaptive heading controller is developed for an underactuated surface vessel with constrained input and sideslip angle compensation. The controller design is accomplished in a framework of backstepping technique.
Xiaoyang Lu, Zhiquan Liu, Zhenzhong Chu
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IEEE Access, 2019 In this paper, a soft-switching proximate time-optimal control (PTOC) is proposed based on the model-compensation extended state observer (ESO) and Takagi-Sugeno fuzzy switching, for the fast set-heading tracking of underactuated autonomous underwater ...
An Li +5 more
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Systems Science & Control Engineering, 2021 This paper investigates the heading control problem of maritime autonomous surface ships (MASSs) in the presence of actuator anomalies. A shared control framework that includes a ship autopilot and a human pilot, is constructed to realize the accurate ...
Minghao Ruan, Anqing Wang, Dan Wang
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Surface ship heading control with sideslip angle and input saturation
Zhongguo Jianchuan Yanjiu, 2021 ObjectivesTo address the impact of non-zero sideslip angle and input saturation on the heading control of a surface ship, a method based on a backstepping control algorithm is proposed.Methods The actual sideslip angle is obtained through the relative ...
Xiaoyang LU +3 more
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Design of submarine heading sliding mode controller based on NESO
Zhongguo Jianchuan Yanjiu, 2018 [Objectives] To realize submarine steering control with low noise when a submarine sails on a surface in a complex sea state, [Methods] a heading controller is designed based on linear motion model on horizontal plane.
LU Binjie, LI Wenkui, CHEN Erming
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Hierarchical Control for Head-to-Head Autonomous Racing
Field RoboticsWe develop a hierarchical controller for head-to-head autonomous racing. We first introduce a formulation of a racing game with realistic safety and fairness rules. A high-level planner approximates the original formulation as a discrete game with simplified state, control, and dynamics to easily encode the complex safety and fairness rules and ...
Rishabh Saumil Thakkar +4 more
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한국해양공학회지, 2020 In this study, heading characteristics and heading control performances were evaluated to achieve the wave shield effect. The wave shield effect originating from heading control reduces the relative motions of moored vessels in a floating liquefied ...
Seunghoon Oh +9 more
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Head Module Control of Mediator Interactions [PDF]
Molecular Cell, 2006 Yeast Mediator proteins interacting with Med17(Srb4) have been expressed at a high level with the use of recombinant baculoviruses and recovered in homogeneous form as a seven subunit, 223 kDa complex. Electron microscopy and single-particle analysis identify this complex as the Mediator head module.
Takagi, Yuichiro +7 more
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Remote SensingPrevious control methods developed by our research team cannot satisfy the high accuracy requirements of unmanned surface vessel (USV) path-tracking during bathymetric mapping because of the excessive overshoot and slow convergence speed. For this reason,
Guoqing Zhou +7 more
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Dynamic control of head mesoderm patterning [PDF]
Development, 2011 The embryonic head mesoderm gives rise to cranial muscle and contributes to the skull and heart. Prior to differentiation, the tissue is regionalised by the means of molecular markers. We show that this pattern is established in three discrete phases, all depending on extrinsic cues.
Bothe, I. +3 more
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