Results 41 to 50 of about 956,188 (149)

AEROS: AdaptivE RObust Least-Squares for Graph-Based SLAM

open access: yesFrontiers in Robotics and AI, 2022
In robot localisation and mapping, outliers are unavoidable when loop-closure measurements are taken into account. A single false-positive loop-closure can have a very negative impact on SLAM problems causing an inferior trajectory to be produced or even
Milad Ramezani   +3 more
doaj   +1 more source

Exploration of Power-Savings on Multi-Core Architectures With Offloaded Real-Time Operating System

open access: yesIEEE Access
A Real-time Operating System (RTOS) manages the execution order of tasks with a scheduling algorithm to meet timing requirements. The scheduler frequently checks for ready tasks during context-switching.
Gokhan Akgun   +6 more
doaj   +1 more source

Thermal Analysis of a MEMS-Based Self-Adaptive Microfluidic Cooling Device

open access: yesMicromachines, 2021
This study presents a thermal analysis of a temperature-driven microfluidic cell through a nonlinear self-adaptive micro valve that provides the mechanisms for the system to maintain a given critical temperature in an efficient way.
Gonzalo Sisó   +7 more
doaj   +1 more source

Design, Motivation and Evaluation of a Full-Resolution Optical Tactile Sensor

open access: yesSensors, 2019
Human skin is capable of sensing various types of forces with high resolution and accuracy. The development of an artificial sense of touch needs to address these properties, while retaining scalability to large surfaces with arbitrary shapes. The vision-
Carmelo Sferrazza, Raffaello D’Andrea
doaj   +1 more source

Virtual Sensing of Wind Turbine Loads With Multi‐Hidden Markov Models for Above‐Rated Wind Speeds

open access: yesWind Energy
The growing demand for wind energy necessitates efficient health monitoring strategies to ensure the long‐term reliability of wind turbines. Monitoring critical loads, such as flapwise blade root moments and tower base fore‐aft moments, is crucial for ...
A. Hassan   +5 more
doaj   +1 more source

Ultra-Wideband Angle of Arrival Estimation Based on Angle-Dependent Antenna Transfer Function

open access: yesSensors, 2019
Ultra-wideband radio signals are used in communication, indoor localization and radar systems, due to the high data rates, the high resilience to fading and the fine temporal resolution that can be achieved with a large bandwidth. This paper introduces a
Anton Ledergerber, Raffaello D’Andrea
doaj   +1 more source

Computationally Efficient Force and Moment Models for Propellers in UAV Forward Flight Applications

open access: yesDrones, 2019
Two low-order, parametric models are developed for the forces and moments that a rotating propeller undergoes in forward flight. The models are derived using a first-principles-based approach, and are computationally efficient in the sense of being ...
Rajan Gill, Raffaello D’Andrea
doaj   +1 more source

Calibrating Away Inaccuracies in Ultra Wideband Range Measurements: A Maximum Likelihood Approach

open access: yesIEEE Access, 2018
A calibration framework for an ultra-wideband localization system employing inertial measurement units is presented. No external motion capture system or other sensors are required for the calibration procedure.
Anton Ledergerber, Raffaello D'andrea
doaj   +1 more source

Self-Calibrating Ultra-Wideband Network Supporting Multi-Robot Localization

open access: yesIEEE Access, 2018
In this paper, we concern ourselves with the development of a localization system that permits multiple robots to localize themselves simultaneously within a given area, which has been outfitted with a network of stationary radio modules.
Michael Hamer, Raffaello D'Andrea
doaj   +1 more source

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