Results 61 to 70 of about 157,311 (159)

Disturbance Observer-Based Model Predictive Control for an Unmanned Underwater Vehicle

Journal of Marine Science and Engineering
This work addresses the motion control problem for a 4-degree-of-freedom unmanned underwater vehicle (UUV) in the presence of nonlinear dynamics, parametric uncertainties, system constraints, and time-varying external disturbances. A disturbance observer-
Yang Hu, Boyang Li, Bailun Jiang, Jixuan Han, Chih-Yung Wen   +4 more
doaj   +1 more source

Auto-Tuning of a Modified L1-Adaptive Controller with Genetic Algorithms for Dynamic Positioning of a Remotely Operated Vehicle Under Marine Currents

Polish Maritime Research
In this article, a modified L1-adaptive controller with auto-tuning using a genetic algorithm is presented for dynamic positioning of remotely operated vehicles (ROVs) under marine currents, based on a six-degree-of-freedom nonlinear model of an ROV.
Sainz Jose Joaquin, Becerra Victor, Herrero Elías Revestido, Llata Jose Ramon, Alonso-Rentería Luciano   +4 more
doaj   +1 more source

Experimental Study on Adaptive Backstepping Synchronous following Control and Thrust Allocation for a Dynamic Positioning Vessel

Journal of Marine Science and Engineering
Cargo transfer vessels (CTVs) are designed to transfer cargo from a floating production storage and offloading (FPSO) unit into conventional tankers.
Changde Liu, Yufang Zhang, Min Gu, Longhui Zhang, Yanbin Teng, Fang Tian   +5 more
doaj   +1 more source

Inertial-Navigation-Aided Single-Satellite Highly Dynamic Positioning Algorithm. [PDF]

Sensors (Basel), 2019
Zhang L, Tang C, Zhang Y, Song H.
europepmc   +1 more source

Multi-Observer Fusion Based Minimal-Sensor Adaptive Control for Ship Dynamic Positioning Systems. [PDF]

Sensors (Basel)
Wu Y, He X, Shi L, Dong S.
europepmc   +1 more source

Event-triggered neuroadaptive predefined practical finite-time control for dynamic positioning vessels: A time-based generator approach. [PDF]

Fundam Res
Zhu G, Ma Y, Yan X.
europepmc   +1 more source

Dynamic needle tip positioning may improve first-attempt success rate in short-axis radial artery cannulation: A systematic review and meta-analysis of randomized trials. [PDF]

J Int Med Res
Mao K, Cai M, Liang J, Yang G, Ye Y, Lin J, Tang M, Chen L, Huang J, Chen W.   +9 more
europepmc   +1 more source

An improved grey wolf optimization algorithm for 3-D UWB indoor positioning. [PDF]

PLoS One
Zhou J, Li B, Yang S, Liu C.
europepmc   +1 more source

A Machine Learning-Assisted Recognition and Compensation Method for UWB Ranging Errors in Complex Indoor Environments. [PDF]

Sensors (Basel)
Zhang J, Zhang G, Xu Y, Li Z, Wu H.
europepmc   +1 more source