Results 71 to 80 of about 40,768 (209)

Extended Kalman Filter-based localization algorithm by edge computing in Wireless Sensor Networks

Digital Communications and Networks, 2021
The Extended Kalman Filter (EKF) has received abundant attention with the growing demands for robotic localization. The EKF algorithm is more realistic in non-linear systems, which has an autonomous white noise in both the system and the estimation model.
Inam Ullah, Siyu Qian, Zhixiang Deng, Jong-Hyouk Lee   +3 more
doaj   +1 more source

Channel, Phase Noise, and Frequency Offset in OFDM Systems: Joint Estimation, Data Detection, and Hybrid Cramer-Rao Lower Bound

, 2014
Oscillator phase noise (PHN) and carrier frequency offset (CFO) can adversely impact the performance of orthogonal frequency division multiplexing (OFDM) systems, since they can result in inter carrier interference and rotation of the signal ...
Durrani, Salman, Kennedy, Rodney A., Mehrpouyan, Hani, Nasir, Ali A., Salim, Omar H., Xiang, Wei   +5 more
core   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

Novel Bispecific Engagers Targeting the CεmX Domain of mIgE‐Expressing Cells

Allergy, EarlyView.
We developed bispecific TCE & NKCE targeting the CεmX domain of mIgE to eliminate IgE‐producing cells. Both constructs demonstrated potent, specific, dose‐dependent cytotoxicity and selective immune activation in vitro. These results highlight their promise as off‐the‐shelf, potentially curative therapeutics for IgE‐associated allergic diseases ...
Constantin Möller, Julia Hambach, Alessa Zoe Schaffrath, Thomas Eden, Sophia Cichutek, Anna Josephine Gebhardt, Natalie Tode, Ronald Maitschke‐Rajasekharan, Philipp Lewe, Sharon Qi, Susanne Witt, Marie Eggers, Nicola M. Tomas, Friedrich Haag, Friedrich Koch‐Nolte, Boris Fehse, Kristoffer Riecken   +16 more
wiley   +1 more source

Error Overboundings of KF-Based IMU/GNSS Integrated System Against IMU Faults

Sensors, 2019
Considering the inertial measurement unit (IMU) faults risk of an unmanned aerial vehicle (UAV), this paper studies the error overboundings of the state estimation of the extended Kalman filter (EKF) in a tightly coupled IMU/global navigation satellite ...
Wei Liu, Dan Song, Zhipeng Wang, Kun Fang   +3 more
doaj   +1 more source

Anthropometry After Prematurity and Foetal Growth Restriction in Childhood and Adolescence

Acta Paediatrica, EarlyView.
ABSTRACT Aim Limited evidence exists on how different degrees of prematurity and foetal growth deviations impact anthropometric outcomes during childhood and adolescence. Methods The Gutenberg Prematurity Study Young (GPSY) is a retrospective cohort with prospective assessments of 4–17‐year‐olds born preterm or at term at the University Medical Center ...
Achim Fieß, Alica Hartmann, Stephanie D. Grabitz, Eva Mildenberger, Omar Hahad, Julia Winter, Alexander K. Schuster, Sandra Gißler, Dirk Wackernagel   +8 more
wiley   +1 more source

Sampling-based Motion Planning for Active Multirotor System Identification

, 2017
This paper reports on an algorithm for planning trajectories that allow a multirotor micro aerial vehicle (MAV) to quickly identify a set of unknown parameters. In many problems like self calibration or model parameter identification some states are only
Burri, Michael, Bähnemann, Rik, Galceran, Enric, Nieto, Juan, Siegwart, Roland   +4 more
core   +1 more source

Disproportional ventilatory response to incremental exercise in individuals with cerebral palsy

Developmental Medicine &Child Neurology, EarlyView.
Individuals with cerebral palsy demonstrate a disproportionate ventilatory response during incremental exercise. Compared with typically developing peers, respiratory frequency increases earlier and at comparable exercise intensities, contributing to higher perceived exertion and reduced ventilatory efficiency. At task failure, respiratory frequency is
Linnéa Corell, Emma Hjalmarsson, Rodrigo Fernandez‐Gonzalo, Annika Kruse, Sebastian Edman, Asta Kizyte, Rouli Wang, Arnoud Edelman Bos, Peder Sörensson, Eva Pontén, Petra E. M. van Schie, Annemieke I. Buizer, Jessica Norrbom, Daniele A. Cardinale, Ferdinand von Walden   +14 more
wiley   +1 more source

Extended Kalman Filter-Based Methods for Pose Estimation Using Visual, Inertial and Magnetic Sensors: Comparative Analysis and Performance Evaluation

Sensors, 2013
In this paper measurements from a monocular vision system are fused with inertial/magnetic measurements from an Inertial Measurement Unit (IMU) rigidly connected to the camera. Two Extended Kalman filters (EKFs) were developed to estimate the pose of the
Gabriele Ligorio, Angelo Maria Sabatini
doaj   +1 more source

Tracking shocked dust: state estimation for a complex plasma during a shock wave

, 2011
We consider a two-dimensional complex (dusty) plasma crystal excited by an electrostatically-induced shock wave. Dust particle kinematics in such a system are usually determined using particle tracking velocimetry.
Durniak, Céline, Oxtoby, Neil P., Ralph, Jason F., Samsonov, Dmitry   +3 more
core   +1 more source