Results 21 to 30 of about 13,707 (269)

Laryngeal ectopic tonsil as a cause of dysphonia: A case report

open access: yesOtolaryngology Case Reports, 2020
Ectopic tonsils have been described in a number of anatomic locations in the head and neck; the pathophysiology remains unclear. Given the rarity of these lesions, there are no guidelines regarding treatment.We present a case report of lymphoid nodule ...
Fabrizio Bandino   +3 more
doaj   +1 more source

Cross-combined UKF for vehicle sideslip angle estimation with a modified Dugoff tire model: design and experimental results

open access: yesMeccanica (Milano. Print), 2021
The knowledge of key vehicle states is crucial to guarantee adequate safety levels for modern passenger cars, for which active safety control systems are lifesavers.
Elvis Villano, B. Lenzo, A. Sakhnevych
semanticscholar   +1 more source

The Identification of ECG Signals Using WT-UKF and IPSO-SVM

open access: yesItalian National Conference on Sensors, 2022
The biometric identification method is a current research hotspot in the pattern recognition field. Due to the advantages of electrocardiogram (ECG) signals, which are difficult to replicate and easy to obtain, ECG-based identity identification has ...
Ning Li   +6 more
semanticscholar   +1 more source

Drone Tracking Using an Innovative UKF [PDF]

open access: yes, 2017
This paper addresses the drone tracking problem, using a model based on the Frenet-Serret frame. A kinematic model in 2D, representing intrinsic coordinates of the drone is used. The tracking problem is tackled using two recent filtering methods. On the one hand, the Invariant Extended Kalman Filter (IEKF), introduced in [1] is tested, and on the other
Marion Pilté   +2 more
openaire   +1 more source

Sun-Direction Estimation Under the Effect of Lunar Albedo

open access: yesHavacılık ve Uzay Teknolojileri Dergisi, 2022
Spacecraft or the instruments are directed to certain directions or points in order to successfully complete their mission. Solar sensors are commonly used as they are capable of being used in planetary or interplanetary space missions in the solar ...
Demet Çilden Güler
doaj  

Detailed Dynamic Model of Antagonistic PAM System and Its Experimental Validation: Sensorless Angle and Torque Control With UKF [PDF]

open access: yesIEEE/ASME transactions on mechatronics, 2020
This article proposes a detailed nonlinear mathematical model of an antagonistic pneumatic artificial muscle (PAM) actuator system for estimating the joint angle and torque using an unscented Kalman filter (UKF).
Takaya Shin, T. Ibayashi, K. Kogiso
semanticscholar   +1 more source

Disturbance estimation for RUAV using UKF with acceleration measurement

open access: yes, 2015
Rotorcraft unmanned aerial vehicles (RUAV) have been widely used in many fields. However, one of the bottleneck problems of RUAV control is how to ensure its motion steady under huge external disturbances such as wind.
He YQ(何玉庆)   +5 more
core   +2 more sources

UKF-based enhancement and ROS implementation of 4-WDDMR localization with advanced control system

open access: yesCogent Engineering, 2018
This article exhibits integration of nonholonomic four-wheeled differential drive mobile robot platform (4-WDDMR) implemented using an Arduino Mega 2560 microcontroller and robot operating system.
Abdulkader Joukhadar, Dalia Kass Hanna
doaj   +1 more source

Optimization-Based Tuning of a Hybrid UKF State Estimator with Tire Model Adaption for an All Wheel Drive Electric Vehicle

open access: yesEnergies, 2021
Novel drivetrain concepts such as electric direct drives can improve vehicle dynamic control due to faster, more accurate, and more flexible generation of wheel individual propulsion and braking torques.
H. Heidfeld, Martin Schünemann
semanticscholar   +1 more source

Processing and filtering analysis of navigation data of underground strapdown inertial navigation system

open access: yesGong-kuang zidonghua, 2014
In view of problems of large errors and low accuracy of positioning technology in coal mine, the strapdown inertial navigation system was introduced into coal mine personnel and equipment for precise positioning and navigation.
LIU Xiaowen, WANG Cun, WANG Long
doaj   +1 more source

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