Results 21 to 30 of about 704,169 (290)

Measurement Noise Covariance-Adapting Kalman Filters for Varying Sensor Noise Situations

open access: yesSensors, 2021
An accurate and reliable positioning system (PS) is a significant topic of research due to its broad range of aerospace applications, such as the localization of autonomous agents in GPS-denied and indoor environments.
Anirudh Chhabra   +2 more
doaj   +1 more source

A Concept of Approximated Densities for Efficient Nonlinear Estimation

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
This paper presents the theoretical development of a nonlinear adaptive filter based on a concept of filtering by approximated densities (FAD). The most common procedures for nonlinear estimation apply the extended Kalman filter.
Virginie F. Ruiz
doaj   +1 more source

An integrated approach to global synchronization and state estimation for nonlinear singularly perturbed complex networks [PDF]

open access: yes, 2015
This paper aims to establish a unified framework to handle both the exponential synchronization and state estimation problems for a class of nonlinear singularly perturbed complex networks (SPCNs).
Alsaadi, FE   +4 more
core   +1 more source

Joint State and Parameter Estimation for Hypersonic Glide Vehicles Based on Moving Horizon Estimation via Carleman Linearization

open access: yesAerospace, 2022
Aimed at joint state and parameter estimation problems in hypersonic glide vehicle defense, a novel moving horizon estimation algorithm via Carleman linearization is developed in this paper.
Yudong Hu, Changsheng Gao, Wuxing Jing
doaj   +1 more source

Dimension estimation for autonomous nonlinear systems [PDF]

open access: yes, 2015
The problem of estimating the dimension of the state-space of an autonomous nonlinear system is considered. Assuming that sampled measurements of the output and finitely many of its time derivatives are available, an exhaustive search algorithm able to ...
Astolfi, A, Padoan, A
core   +1 more source

Linear parameter estimation for multi-degree-of-freedom nonlinear systems using nonlinear output frequency-response functions [PDF]

open access: yes, 2006
The Volterra series approach has been widely used for the analysis of nonlinear systems. Based on the Volterra series, a novel concept named Nonlinear Output Frequency Response Functions (NOFRFs) was proposed by the authors.
Billings, S.A., Lang, Z.Q., Peng, Z.K.
core   +2 more sources

Overview and Comparison of Nonlinear Interference Modelling Approaches in Ultra-Wideband Optical Transmission Systems [PDF]

open access: yes, 2019
The recent advances in modelling nonlinear interference of systems operating beyond the C-band are discussed.
Bayvel, Polina   +2 more
core   +2 more sources

Nonlinear Least Squares Estimation

open access: yesThe Annals of Mathematical Statistics, 1965
We are given a set of $N$ responses $Y_t$ which have arisen from a nonlinear regression model \begin{equation*}\tag{(1.1)}Y_t = f(x_t, \theta) + e_t; \quad t = 1, 2, \cdots, N.\end{equation*} Here $x_t$ denotes the $t$th fixed input vector of $k$ elements giving rise to $Y_t$, whilst $\theta$ is an $m$-element unknown parameter vector with elements ...
Hartley, H. O., Booker, Aaron
openaire   +3 more sources

Novel D-SLP Controller Design for Nonlinear Feedback Control

open access: yesIEEE Access, 2020
Novel nonlinear feedback control based on the dragonfly swarm learning process (D-SLP) algorithm is proposed in this paper. This approach improves the performance, stability and robustness of designing the nonlinear system controller. The D-SLP algorithm
Jirapun Pongfai   +3 more
doaj   +1 more source

Universal nonlinear disturbance observer for robotic manipulators

open access: yesInternational Journal of Advanced Robotic Systems, 2023
Dynamic uncertainties and unknown disturbances will degrade the tracking performance of robots. When using a disturber observer-based controller, the key to effectively compensate for these uncertainties is to measure or estimate as accurately as ...
Feilong Zhang   +3 more
doaj   +1 more source

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