Results 31 to 40 of about 1,433,250 (249)

Performance Evaluation of the New Compound-Carrier-Modulated Signal for Future Navigation Signals

open access: yesSensors, 2016
Navigation Signal based on Compound Carrier (NSCC), is proposed as the potential future global navigation satellite system (GNSS) signal modulation scheme.
Ruidan Luo, Ying Xu, Hong Yuan
doaj   +1 more source

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

open access: yesRemote 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   +5 more
doaj   +1 more source

Online Feature Selection for Visual Tracking [PDF]

open access: yes, 2016
Object tracking is one of the most important tasks in many applications of computer vision. Many tracking methods use a fixed set of features ignoring that appearance of a target object may change drastically due to intrinsic and extrinsic factors.
Melzi, Simone, Roffo, Giorgio
core   +2 more sources

High-performance face tracking

open access: yesProceedings of the 3rd Symposium on Facial Analysis and Animation, 2012
Face tracking is an extensively studied field. Nevertheless, it is still a challenge to make a robust and efficient face tracker, especially on mobile devices. This extended abstract briefly describes our implementation of a high-performance multi-platform face and facial feature tracking system.
Markuš, Nenad   +4 more
openaire   +5 more sources

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

open access: yesJournal 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   +5 more
doaj   +1 more source

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

open access: yesScientific 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

Adaptive Backstepping Design of a Microgyroscope

open access: yesMicromachines, 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

open access: yesEnergies, 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

Evaluation of the Utility of Baseline Echocardiogram in Patients With Standard Risk Precursor B‐Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background A routine baseline echocardiogram is often obtained prior to anthracycline administration in children with cancer. The utility of baseline echocardiogram is unclear in patients with standard risk B‐cell acute lymphoblastic leukemia (SR B‐ALL) as their anthracycline cumulative dose is low.
Ziyad Alrajhi   +4 more
wiley   +1 more source

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

open access: yesEnergies
For the traditional one-degree-of-freedom controller, there is a trade-off between the tracking performance and disturbance rejection performance.
Chaoming Huang   +4 more
doaj   +1 more source

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