Results 21 to 30 of about 293,095 (150)

Multiple Object Tracking of Drone Videos by a Temporal-Association Network with Separated-Tasks Structure

Remote Sensing, 2022
The task of multi-object tracking via deep learning methods for UAV videos has become an important research direction. However, with some current multiple object tracking methods, the relationship between object detection and tracking is not well handled,
Yeneng Lin, Mengmeng Wang, Wenzhou Chen, Wang Gao, Lei Li, Yong Liu   +5 more
doaj   +1 more source

Adaptive neural network prescribed performance control for dual switching nonlinear time-delay system

Scientific Reports, 2023
This paper investigates the adaptive neural network prescribed performance control problem for a class of dual switching nonlinear systems with time-delay. By using the approximation of neural networks (NNs), an adaptive controller is designed to achieve
Qianqian Mu, Fei Long, Bin Li
doaj   +1 more source

Neural Network Non-Singular Terminal Sliding Mode Control for Target Tracking of Underactuated Underwater Robots with Prescribed Performance

Journal of Marine Science and Engineering, 2022
This paper proposes a neural network-based nonsingular terminal sliding mode controller with prescribed performances for the target tracking problem of underactuated underwater robots.
Liwei Guo, Weidong Liu, Le Li, Yichao Lou, Xinliang Wang, Zhi Liu   +5 more
doaj   +1 more source

Adaptive Backstepping Design of a Microgyroscope

Micromachines, 2018
This paper presents a novel algorithm for the design and analysis of an adaptive backstepping controller (ABC) for a microgyroscope. Firstly, Lagrange–Maxwell electromechanical equations are established to derive the dynamic model of a z-axis ...
Yunmei Fang, Juntao Fei, Yuzheng Yang
doaj   +1 more source

Effect of the Azimuth Axis Tilt Error on the Tracking Performance of a Solar Dish Concentrator System

Energies, 2022
A solar dish concentrator system has a large windward area and heavy structural mass, and under the action of wind loads and self-weight loads, foundation settlement can easily occur and cause the column (the azimuth axis) to tilt.
Yongxiang Liu, Youduo Peng, Jian Yan
doaj   +1 more source

An Improved Two-Degree-of-Freedom Speed Controller for Permanent-Magnet Synchronous Motors

Energies
For the traditional one-degree-of-freedom controller, there is a trade-off between the tracking performance and disturbance rejection performance.
Chaoming Huang, Jinyang Wu, Ping Lin, Kai Lin, Yuan Gao   +4 more
doaj   +1 more source

Fusion of different feedback control systems for the control of shaking tables (Interference compensation for control systems and design of controllers that can suppress specimen reaction forces)

Nihon Kikai Gakkai ronbunshu
A shaking table is a device used to examine the vibration characteristics of a specimen by applying vibration to it, and is used to evaluate the earthquake resistance of buildings and the ride comfort and safety of vehicles. Therefore, it is necessary to
Mineki OKAMOTO, Keisuke SHIMONO, Yasutaka TAGAWA   +2 more
doaj   +1 more source

Design of Generalized Sinusoidal Frequency Modulated Pulse Train Waveform to Improve Tracking Performance of High Duty Cycle Sonar Systems

IEEE Access, 2022
High duty cycle sonar (HDCS) systems have a high potential for improving tracking performance compared to conventional pulsed active sonar systems, but their implementation has been challenging to achieve.
Geunhwan Kim, Seokjin Lee, Kyungsik Yoon, Changsoo Ryu, Minseuk Park, Youngmin Choo   +5 more
doaj   +1 more source

Improved Non-Singular Fast Terminal Sliding Mode Control with Hysteresis Compensation for Piezo-Driven Fast Steering Mirrors

Actuators
Piezo-driven fast steering mirrors (PFSMs) are widely employed in high-precision beam steering and accurate tracking applications. However, the inherent hysteresis nonlinearity of piezoelectric actuators significantly degrades tracking accuracy.
Enfu Zhong, Shuai Wang, Chuanlong Zhai, Wenjie Li   +3 more
doaj   +1 more source

Designs of Particle-Swarm-Optimization-Based Intelligent PID Controllers and DC/DC Buck Converters for PEM Fuel-Cell-Powered Four-Wheeled Automated Guided Vehicle

Applied Sciences, 2023
For automatic guided vehicles (AGVs), maximizing the operating time with maximum energy efficiency is the most important factor that increases work efficiency.
Mehmet Hakan Demir, Mehmet Demirok
doaj   +1 more source