Results 101 to 110 of about 404,248 (295)

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Ordered magnetic fields around radio galaxies: evidence for interaction with the environment

, 2011
We present detailed imaging of Faraday rotation and depolarization for the radio galaxies 0206+35, 3C 270, 3C 353 and M 84, based on Very Large Array observations at multiple frequencies in the range 1365 to 8440 MHz.
A. H. Bridle, Baum, Bicknell, Blanton, Bower, Bower, Burn, Carilli, Carilli, Croston, Croston, Croston, D. Guidetti, de Vaucouleurs, Dreher, Dursi, Eilek, Enßlin, Fanaroff, Faraday, Ferrari, Finoguenov, Finoguenov, Finoguenov, Forman, Goodger, Govoni, Guidetti, Guidetti, Hansen, Iwasawa, Jetha, Kraft, L. Gregorini, Laing, Laing, Laing, McNamara, McNamara, Miller, Minter, Morganti, Murgia, Nulsen P., P. Parma, R. A. Laing, Simard-Normandin, Simonetti, Swain, Trager, Tribble, Trussoni, Vacca, Wilson, Worrall, Worrall, Worrall, Worrall   +57 more
core   +1 more source

An Adaptive Human Pilot Model With Reaction Time Delay for Enhanced Adaptive Control in Piloted Systems

International Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley   +1 more source

Differential radio map-based robust indoor localization

EURASIP Journal on Wireless Communications and Networking, 2011
While wireless local area network-based indoor localization is attractive, the problems concerning how to capture the signal-propagating character in the complex dynamic environment and how to accommodate the receiver gain difference of different mobile ...
Chen Hongyang, Wang Jie, Gao Qinghua, Wang Hongyu, Jin Minglu   +4 more
doaj  

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

A Deep-Learning Approach to a Volumetric Radio Environment Map Construction for UAV-Assisted Networks

International Journal of Antennas and Propagation
Providing global coverage for ubiquitous users is a key requirement of the fifth generation (5G) and beyond wireless technologies. This can be achieved by integrating airborne networks, such as unmanned aerial vehicles (UAVs) and satellite networks, with
Bethelhem S. Shawel, Dereje H. Woldegebreal, Sofie Pollin   +2 more
doaj   +1 more source

Demonstration Platform to Emulate Cognitive GEO-LEO Dual Satellite System

IEEE Access
Cognitive radio technology represents a transformative advancement in modern telecommunications, enabling real-time adaptation and optimisation of communication systems through sensing, analysis, and decision-making.
Kithmini Weththasinghe, Ying He, Quynh Tu Ngo, Beeshanga Jayawickrama, Eryk Dutkiewicz   +4 more
doaj   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Experimental Study of Link Quality Distribution in Sensor Network Deployment for Building Environment

Electronic Journal of Structural Engineering, 2009
Monitoring and automatic control of building environment is a crucial application of wireless sensor network (WSN) in which maximizing network lifetime is a key challenge. The link quality distribution in a single floor of an indoor building environment
Malka. N. Halgamuge, Toong-Khuan Chan, Priyan Mendis   +2 more
doaj   +1 more source