Results 61 to 70 of about 1,039 (167)

State Estimation of Permanent Magnet Synchronous Motor Using Improved Square Root UKF

open access: yesEnergies, 2016
This paper focuses on an improved square root unscented Kalman filter (SRUKF) and its application for rotor speed and position estimation of permanent magnet synchronous motor (PMSM).
Bo Xu   +4 more
doaj   +1 more source

On Accurate Discrete-Time Dynamic Models of an Induction Machine

open access: yesMathematics
Induction machines have become the standard for highly demanding industrial applications. This has led to the utilization of modern discrete-time control techniques (such as model predictive control) that require the estimation of internal variables that
Ramón Herrera Hernández   +3 more
doaj   +1 more source

Performance Enhancement and Evaluation of a Vector Tracking Receiver Using Adaptive Tracking Loops

open access: yesRemote Sensing
The traditional receiver employs scalar tracking loops, resulting in degraded navigation performance in weak signal and high dynamic scenarios. An innovative design of a vector tracking receiver based on nonlinear Kalman filter (KF) tracking loops is ...
Ning Gao   +3 more
doaj   +1 more source

Apple Trajectory Prediction in Orchards: A YOLOv8-EK-IPF Approach

open access: yesAgriculture
To address the challenge of accurate apple harvesting by orchard robots, which is hindered by dynamic changes in apple position due to wind interference and branch swaying, this study proposes an optimized prediction algorithm based on an integration of ...
Jinxing Niu   +4 more
doaj   +1 more source

An adaptive particle filter based on PSO and fuzzy inference system for nonlinear state systems

open access: yesAutomatika, 2018
Particle filters have been widely used in nonlinear/non-Gaussian Bayesian state estimation problems. However, the particle filter (PF) is inconsistent over time. The inconsistency of PF mainly results from the particle depletion in resampling step and an
Ramazan Havangi
doaj   +1 more source

State-of-Charge Estimation of Lithium-Ion Batteries via Long Short-Term Memory Network

open access: yesIEEE Access, 2019
Accurate state-of-charge (SOC) estimation is critical for driving range prediction of electric vehicles and optimal charge control of batteries. In this paper, a stacked long short-term memory network is proposed to model the complex dynamics of lithium ...
Fangfang Yang   +3 more
doaj   +1 more source

Enhancing soil moisture simulation in the Northeast China permafrost region through the Noah-MP and Kalman filter

open access: yesJournal of Hydrology: Regional Studies
Study region: Permafrost region in Northeast China. Study focus: This study aims to improve soil moisture (SM) simulation in the Northeast China permafrost region by integrating the Noah-MP land surface model with several Kalman filter–based data ...
Xianju Yuan   +6 more
doaj   +1 more source

Online estimation of lithium battery SOC based on fractional order FOUKF‐FOMIUKF algorithm with multiple time scales

open access: yesEnergy Science & Engineering
Aiming at the matter of poor precision in predicting the charge of lithium battery by applying conventional integer‐order models and offline parameter identification, this paper proposes a joint fractional‐order multi‐innovations unscented Kalman filter (
Likun Xing   +4 more
doaj   +1 more source

Research on SOC Estimation of Lithium-Ion Battery Based on CA-SVDUKF Algorithm

open access: yesBatteries
Because of the problem that the traditional unscented Kalman filter algorithm (UKF) may terminate the iteration due to the non-positive definite error covariance matrix during state of charge (SOC) estimation of lithium-ion battery, considering the ...
Jinrun Cheng, Kuo Yang, Xing Hu
doaj   +1 more source

Robust hybrid Neural–Kalman filter for real-time supercapacitor state-of-charge estimation in electric vehicles

open access: yesFuture Batteries
Accurate estimation of supercapacitor state-of-charge (SOC) is vital for optimal energy management in electric vehicles (EVs), particularly within hybrid energy storage systems (HESS). Challenges arise from nonlinear dynamics, self-discharge, temperature
Islam A. Sayed, Yousef Mahmoud
doaj   +1 more source

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