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Advanced Search Results For "DYNAMIC positioning systems"

1 - 10 of 2,734 results for
 "DYNAMIC positioning systems"
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Design of the UAV Trajectory Tracking System Based on the Adaptive Neural Network - ADRC Method.

Publication Type: Academic Journal

Source(s): Wireless Communications & Mobile Computing. 10/5/2022, p1-10. 10p.

Abstract: In order to solve the problems of internal uncertainty and external disturbance of an unmanned aerial vehicle (UAV), this paper proposes the active disturbance rejection controller (ADRC) based on the adaptive radial basis function (RBF) neural network...

Research on Heading Control of USV with the Lateral Thruster.

Publication Type: Academic Journal

Source(s): Mathematical Problems in Engineering. 10/4/2022, Vol. 2022, p1-7. 7p.

Abstract: In order to solve the problem of low speed and stable course tracking of the small unmanned surface vessel (USV), the lateral thruster are added to the driving structure of the USV, and a backstepping control method is designed. By introducing the Lyap...

Toward Reliable UAV-Enabled Positioning in Mountainous Environments: System Design and Preliminary Results.

Publication Type: Academic Journal

Source(s): IEEE Transactions on Reliability. Dec2022, Vol. 71 Issue 4, p1435-1463. 29p.

Abstract: Reliable positioning services are extremely important for users in mountainous environments. However, in such environments, the service reliability of conventional wireless positioning technologies is often disappointing due to frequent non-line-of-sig...

Modeling and Solving the Dynamic Task Allocation Problem of Heterogeneous UAV Swarm in Unknown Environment.

Publication Type: Academic Journal

Source(s): Complexity. 4/22/2022, p1-14. 14p.

Abstract: As a NP-hard problem that needs to be solved in real time, the dynamic task allocation problem of unmanned aerial vehicle (UAV) swarm has gradually become a difficulty and hotspot in the current planning field. Aiming at the problems of poor real-time ...

Design of Active Disturbance Rejection Controller for Dynamic Positioning Based on Improved Particle Swarm Optimization.

Publication Type: Academic Journal

Source(s): Mathematical Problems in Engineering. 4/20/2022, p1-11. 11p.

Abstract: Intelligent control methods play an important role in the dynamic positioning system (DPS). To improve the control accuracy of dynamic positioning systems, an improved active disturbance rejection controller (IADRC) is designed in this study, which can...

A neural network based heading and position control system of a ship.

Publication Type: Academic Journal

Source(s): Mehran University Research Journal of Engineering & Technology. Apr2022, Vol. 41 Issue 2, p172-177. 6p.

Abstract: Heading and position control system of ships has remained a challenging control problem. It is a nonlinear multiple input multiple output system. Moreover, the dynamics of the system vary with operating as well as environmental conditions. Conventional...

Architecture of Positioning and Tracking Solutions for Maritime Applications.

Publication Type: Academic Journal

Source(s): TransNav: International Journal on Marine Navigation & Safety of Sea Transportation. Sep2022, Vol. 16 Issue 3, p481-489. 9p.

Authors:

Abstract: This paper discusses the current and new satellite transponders for global tracking and detecting of oceangoing ships, assets, crew, passengers and any moving objects at sea for enhanced vessels traffic control and management. These transponders are ab...

Theory and Application of Vessel Speed Dynamic Control considering Safety and Environmental Factors.

Publication Type: Academic Journal

Source(s): Journal of Advanced Transportation. 4/23/2022, p1-12. 12p.

Abstract: The implementation of ship speed control is extremely important in the shipping industry. It is affected by various factors, such as water depth, obstacles, and environmental factors. Traditional speed control methods only consider geographical constra...

New Adaptive Dynamic Output Feedback Control of Double-Pendulum Ship-Mounted Cranes With Accurate Gravitational Compensation and Constrained Inputs.

Publication Type: Academic Journal

Source(s): IEEE Transactions on Industrial Electronics. Sep2022, Vol. 69 Issue 9, p9196-9205. 10p.

Abstract: Output feedback control without using velocities is an effective way of dealing with problems caused by unmeasurable velocities and noise magnification by numerical difference, which are practical issues associated with crane control. This article prop...

Mitigating GNSS Multipath Effects Using XGBoost Integrated Classifier Based on Consistency Checks.

Publication Type: Academic Journal

Source(s): International Journal of Antennas & Propagation. 8/1/2022, p1-14. 14p.

Abstract: Under the influence of urban building roads, especially interference from multipath effects, global navigation satellite system (GNSS) receiver-related output signal distortion can affect the robustness of the positioning system and the final positioni...

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