Results 41 to 50 of about 66,114 (285)

Ensemble Kalman methods for high-dimensional hierarchical dynamic space-time models

open access: yes, 2018
We propose a new class of filtering and smoothing methods for inference in high-dimensional, nonlinear, non-Gaussian, spatio-temporal state-space models.
Katzfuss, Matthias   +2 more
core   +2 more sources

Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs

open access: yesAdvanced Science, EarlyView.
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng   +6 more
wiley   +1 more source

Enhanced Navigation Accuracy Using Nonlinear Kalman Filters in INS/GPS Integration

open access: yesMajlesi Journal of Electrical Engineering
This study explores the challenges of error accumulation in inertial navigation systems (INS) and presents a solution to enhance navigation accuracy.
Mohammadreza Mollaei   +2 more
doaj   +1 more source

Comparison of extended and ensemble based Kalman filters with low and high resolution primitive equation ocean models [PDF]

open access: yesNonlinear Processes in Geophysics, 2005
Kalman filters are widely used for data assimilation into ocean models. The aim of this study is to discuss the relevance of these filters with high resolution ocean models. This was investigated through the comparison of two advanced Kalman filters: the
I. Hoteit, G. Korres, G. Triantafyllou
doaj  

Kalman Filtering with Unknown Noise Covariances [PDF]

open access: yes, 2006
Since it is often difficult to identify the noise covariances for a Kalman filter, they are commonly considered design variables. If so, we can as well try to choose them so that the corresponding Kalman filter has some nice form.
Nilsson, Martin
core   +1 more source

Generalized Nonlinear Complementary Attitude Filter

open access: yes, 2011
This work describes a family of attitude estimators that are based on a generalization of Mahony's nonlinear complementary filter. This generalization reveals the close mathematical relationship between the nonlinear complementary filter and the more ...
Jensen, Kenneth
core   +1 more source

Flexible IMU Sensor Array For 3D Colonoscope Shape Reconstruction and AI‐Based Loop Detection

open access: yesAdvanced Science, EarlyView.
We propose a sensing platform for 3D visualization of the colonoscope combined with artificial intelligence (AI)‐based loop detection. The system consists of an array of 15 inertial measurement units (IMUs) mounted on a flexible printed circuit board that can be retrofitted into the instrument channel of conventional colonoscopes.
Tuukka Panula   +3 more
wiley   +1 more source

Parallelized Kalman Filters for Mitigation of the Excess Phase Noise of Fast Tunable Lasers in Coherent Optical Communication Systems

open access: yesIEEE Photonics Journal, 2018
Numerical and experimental investigations are carried out on the performance of parallelized Kalman filters applied for mitigation of the excess phase noise of fast tunable lasers.
Fan Liu   +3 more
doaj   +1 more source

Analysis and Forecast of the Number of Deaths, Recovered Cases, and Confirmed Cases From COVID-19 for the Top Four Affected Countries Using Kalman Filter

open access: yesFrontiers in Physics, 2021
COVID-19 is a virus that spread globally, causing severe health complications and substantial economic impact in various parts of the world. The COVID-19 forecast on infections is significant and crucial information that will help in executing policies ...
Abdullah Ali H. Ahmadini   +7 more
doaj   +1 more source

A New Approach to Adaptive Signal Processing

open access: yes, 2015
A unified linear algebraic approach to adaptive signal processing (ASP) is presented. Starting from just Ax=b, key ASP algorithms are derived in a simple, systematic, and integrated manner without requiring any background knowledge to the field ...
Anjum, Muhammad Ali Raza
core   +2 more sources

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