Fuzzy Adaptive Constrained Consensus Tracking of High-Order Multi-agent Networks: A New Event-Triggered Mechanism

This article aims to realize event-triggered constrained consensus tracking for high-order nonlinear multiagent networks subject to full-state constraints. The main challenge of achieving such goals lies in the fact that the standard designs [e.g., backstepping, event-triggered control, and barrier Lyapunov functions (BLFs)] successfully...

Adaptive Vector Field Guidance Without a Priori Knowledge of Course Dynamics and Wind

The high maneuverability of fixed-wing unmanned aerial vehicles (UAVs) exposes these systems to several dynamical and parametric uncertainties, severely affecting the fidelity of modeling and causing limited guidance autonomy. This article shows enhanced autonomy via adaptation mechanisms embedded in the guidance law: a vector-field method is...

The problem of reliable design of vector-field path following in the presence of uncertain course dynamics

Reliable guidance of fixed-wing Unmanned Aerial Vehicles (UAVs) is challenging, as their high maneuverability exposes them to several dynamical changes and parametric uncertainties. Reliability of state-of-the-art guidance methods is often at stake, as these methods heavily rely on precise UAV course dynamics, assumed in a decoupled first...

Multi-GNSS PPP-RTK: From large- to Small-Scale networks

Precise point positioning (PPP) and its integer ambiguity resolution-enabled variant, PPP-RTK (real-time kinematic), can benefit enormously from the integration of multiple global navigation satellite systems (GNSS). In such a multi-GNSS landscape, the positioning convergence time is expected to be reduced considerably as compared to the one...

Study on route division for ship energy efficiency optimization based on big environment data

In the case of the global energy crisis and the higher sound of energy saving and emission reduction, how to take effective management measures of ship energy efficiency to achieve the goal of energy saving and emission reduction, put forward a new challenge for the development of shipping technology. The application of big data technology...

UAV: Warnings From Multiple Automated Static Analysis Tools At A Glance

Automated Static Analysis Tools (ASATs) are an integral part of today’s software quality assurance practices. At present, a plethora of ASATs exist, each with different strengths. However, there is little guidance for developers on which of these ASATs to choose and combine for a project. As a result, many projects still only employ one ASAT...

Traffic incident management in the presence of hazards

Traffic incidents can result in different kinds of hazards (e.g., plumes) that influence the status of road networks, therefore there is a great need for incident management in the presence of the hazards. When incidents occur, the created hazards not only affect the normal road users (make them detour or blocked), but also influence the...

A data model for route planning in the case of forest fires

The ability to guide relief vehicles to safety and quickly pass through environments affected by fires is critical in fighting forest fires. In this paper, we focus on route determination in the case of forest fires, and propose a data model that supports finding paths among moving obstacles. This data model captures both static information,...

Improving Auditory Navigation in Public Buildings for Blind and Visually impaired People

Compared with people with normal vision, blind and visually impaired people (B&VI) suffer from not only limited accessibility to public buildings but also poor experience of these buildings. However, the keen senses of sound and touch of B&VI, which are honed through daily practice and compensated by the loss of vision in brain, could be...

Invloed van ingrepen in het mondinggebied van de Westerschelde: Evaluatie aan de hand van ESTMORF berekeningen

Evaluatie van het beleid voor vaargeulonderhoud en zandwinning sinds de tweede vaargeulverdieping op basis van veldwaarnemingen en het verbeterde cellenconcept Westerschelde

Onderbouwing van het cellenconcept Westerschelde als instrument voor beleid en beheer: Toetsing aannames met SOBEK berekeningen

Adviezen voor het maken van een gezamenlijke zandbalans voor Westerschelde en monding