Results 21 to 30 of about 662,175 (342)

A hybrid particle-ensemble Kalman filter for problems with medium nonlinearity.

PLoS ONE, 2021
A hybrid particle ensemble Kalman filter is developed for problems with medium non-Gaussianity, i.e. problems where the prior is very non-Gaussian but the posterior is approximately Gaussian. Such situations arise, e.g., when nonlinear dynamics produce a
Ian Grooms, Gregor Robinson
doaj   +1 more source

Modeling and Simulation of English Speech Rationality Optimization Recognition Based on Improved Particle Filter Algorithm

Complexity, 2020
As one of the most important communication tools for human beings, English pronunciation not only conveys literal information but also conveys emotion through the change of tone.
Hui Dong
doaj   +1 more source

Determining the appropriate number of particles on a filter to allow small microplastics to be analyzed by microscopy

MethodsX, 2022
The concentrations of small microplastics (diameter
Haodong Xu, Hisayuki Arakawa
doaj   +1 more source

Improved proposal distribution with gradient measures for tracking [PDF]

, 2005
Particle filters have become a useful tool for the task of object tracking due to their applicability to a wide range of situations. To be able to obtain an accurate estimate from a particle filter a large number of particles is usually necessary.
Brasnett, PA, Bull, DR, Canagarajah, CN, Mihaylova, LS   +3 more
core   +3 more sources

Distributed SLAM Using Improved Particle Filter for Mobile Robot Localization

The Scientific World Journal, 2014
The distributed SLAM system has a similar estimation performance and requires only one-fifth of the computation time compared with centralized particle filter.
Fujun Pei, Mei Wu, Simin Zhang
doaj   +1 more source

An improved particle filtering algorithm for aircraft engine gas-path fault diagnosis

Advances in Mechanical Engineering, 2016
In this article, an improved particle filter with electromagnetism-like mechanism algorithm is proposed for aircraft engine gas-path component abrupt fault diagnosis.
Qihang Wang, Jinquan Huang, Feng Lu
doaj   +1 more source

Nonlinear Vibration Signal Tracking of Large Offshore Bridge Stayed Cable Based on Particle Filter

Polish Maritime Research, 2015
The stayed cables are key stress components of large offshore bridge. The fault detection of stayed cable is very important for safe of large offshore bridge.
Ye Qingwei, Feng Zhimin, Yuan Debin
doaj   +1 more source

Covariance-tuned EKF resampling based particle filter

Journal of Applied Science and Engineering, 2022
Signal processing in complex environments is a challenging issue in many applications. Recent studies show that variants of particle filters achieve significant performance in positioning and tracking applications under complex environments.
N. Ashok Kumar, G. Sasibhushana Rao, S. Sudha Rani   +2 more
doaj   +1 more source

Nonlinear Compressive Particle Filtering [PDF]

, 2013
Many systems for which compressive sensing is used today are dynamical. The common approach is to neglect the dynamics and see the problem as a sequence of independent problems. This approach has two disadvantages. Firstly, the temporal dependency in the
Ohlsson, Henrik, Sastry, S. Shankar, Verhaegen, Michel   +2 more
core   +1 more source

Particle Filtering With Invertible Particle Flow [PDF]

IEEE Transactions on Signal Processing, 2017
A key challenge when designing particle filters in high-dimensional state spaces is the construction of a proposal distribution that is close to the posterior distribution. Recent advances in particle flow filters provide a promising avenue to avoid weight degeneracy; particles drawn from the prior distribution are migrated in the state-space to the ...
Li, Yunpeng, Coates, Mark
openaire   +2 more sources