Results 31 to 40 of about 1,517,624 (291)

Single-Stage Adaptive Multi-Scale Point Cloud Noise Filtering Algorithm Based on Feature Information

open access: yesRemote Sensing, 2022
This paper proposes a single-stage adaptive multi-scale noise filtering algorithm for point clouds, based on feature information, which aims to mitigate the fact that the current laser point cloud noise filtering algorithm has difficulty quickly ...
Zhen Zheng   +5 more
doaj   +1 more source

An Alignment Method Based on KF-ASMUKF Hybrid Filtering for Ship’s SINS under Mooring Conditions

open access: yesSensors, 2021
To solve the problem that the ship’s strapdown inertial navigation system (SINS) alignment accuracy decreases with the increase of the nonlinear filtering state dimension under mooring conditions, a method based on Kalman filter (KF) and Adaptive scale ...
Pengchao Yao, Gongliu Yang, Xiafu Peng
doaj   +1 more source

Adaptive Kalman Filtering

open access: yesJournal of Research of the National Bureau of Standards, 1985
The increased power of small computers makes the use of parameter estimation methods attractive. Such methods have a number of uses in analytical chemistry. When valid models are available, many methods work well, but when models used in the estimation are in error, most methods fail.
Brown, Steven D., Rutan, Sarah C.
openaire   +3 more sources

A New Adaptive H-Infinity Filtering Algorithm for the GPS/INS Integrated Navigation

open access: yesSensors, 2016
The Kalman filter is an optimal estimator with numerous applications in technology, especially in systems with Gaussian distributed noise. Moreover, the adaptive Kalman filtering algorithms, based on the Kalman filter, can control the influence of ...
Chen Jiang, Shu-Bi Zhang, Qiu-Zhao Zhang
doaj   +1 more source

Adaptive pre-filtering techniques for colour image analysis [PDF]

open access: yes, 2007
One important step in the process of colour image segmentation is to reduce the errors caused by image noise and local colour inhomogeneities. This can be achieved by filtering the data with a smoothing operator that eliminates the noise and the ...
Dana Elena Ilea   +3 more
core   +2 more sources

A Novel Adaptive H∞ Filtering Method with Delay Compensation for the Transfer Alignment of Strapdown Inertial Navigation Systems

open access: yesSensors, 2017
Transfer alignment is always a key technology in a strapdown inertial navigation system (SINS) because of its rapidity and accuracy. In this paper a transfer alignment model is established, which contains the SINS error model and the measurement model ...
Weiwei Lyu, Xianghong Cheng
doaj   +1 more source

Research on filtering of electromagnetic measurement while drilling signal in underground coal mine

open access: yesGong-kuang zidonghua, 2019
In view of problems of slow convergence speed and long computation time existed in electromagnetic wireless measurement while drilling (EM-MWD) signals extracted by adaptive filtering least mean square algorithm and recursive least squares algorithm, a ...
KANG Houqing
doaj   +1 more source

A SINS/DVL Integrated Positioning System through Filtering Gain Compensation Adaptive Filtering

open access: yesSensors, 2019
Because of the complex task environment, long working distance, and random drift of the gyro, the positioning error gradually diverges with time in the design of a strapdown inertial navigation system (SINS)/Doppler velocity log (DVL) integrated ...
Xiaozhen Yan   +4 more
doaj   +1 more source

Nonlinear Adaptive Filtering to ForecastAir Pollution [PDF]

open access: yes, 2011
Non
Orione, Fiammetta   +5 more
core   +1 more source

Application of Improved Sage-Husa Algorithm in SINS/GPS Integrated Navigation

open access: yesJournal of Harbin University of Science and Technology
To address the issues of low filtering accuracy and poor reliability encountered when employing the Sage-Husa adaptive filtering algorithm in combined navigation systems, an improved Sage-Husa adaptive filtering algorithm is proposed.
WEN Sheng   +3 more
doaj   +1 more source

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