Results 21 to 30 of about 68,495 (163)
An improved approach for rapid filter convergence of GNSS satellite real-time orbit determination
Frontiers in Physics, 2023 Introduction: The real-time precise satellite orbit of Global Navigation Satellite System (GNSS) usually takes a long time to converge to a stable state using the filter method.
Liqin Zhou +8 more
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Implementation of a Low- Cost Multi- IMU by Using Information Form of a Steady State Kalman Filter [PDF]
AUT Journal of Electrical Engineering, 2017 In this paper, a homogenous multi-sensor fusion method is used to estimate the trueangular rate and acceleration with a combination of four low cost (< 10$) MEMS Inertial MeasurementUnits (IMU).
A. M. Shahri, R. Rasoulzadeh
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Improved Adaptive Federated Kalman Filtering for INS/GNSS/VNS Integrated Navigation Algorithm
Applied Sciences, 2023 To address the issue of low positioning accuracy in unmanned vehicles navigating in obstructed spaces due to easily contaminated navigation measurement information, an improved adaptive federated Kalman filtering INS/GNSS/VNS integrated navigation ...
Xuejia Wu, Zhong Su, Lei Li, Zekun Bai
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Score Evaluation Within the Extended Square-Root Information Filter [PDF]
, 2006 A newly developed algorithm for evaluating the Log Likelihood Gradient (score) of linear discrete-time dynamic systems is presented, based on the extended Square-Root Information Filter (eSRIF). The new result can be used for efficient calculations in gradient-search algorithms for maximum likelihood estimation of the unknown system parameters.
Maria V. Kulikova +1 more
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Decentralized square-root information Kalman filtering based on J-orthogonal transformations
Journal of Physics: Conference Series, 2021 Abstract The paper addresses the problem of decentralization of the measurement data processing based on matrix J-orthogonal transformations in the square-root information Kalman filter. J-orthogonal transformations are applied in a decentralized filter at the stage of communication and assimilation.
A V Tsyganov, Yu V Tsyganova
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A LiDAR SLAM-Assisted Fusion Positioning Method for USVs
Sensors, 2023 Confronted with unmanned surface vessel (USV) operations where GNSS signals are unavailable due to obscuration and other factors, a LiDAR SLAM-assisted fusion positioning method for USVs is proposed to combine GNSS/INS positioning with LiDAR-SLAM.
Wei Shen +3 more
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Inertial Indoor Pedestrian Navigation Based on Cascade Filtering Integrated INS/Map Information
Sensors, 2022 Indoor pedestrian positioning has been widely used in many scenarios, such as fire rescue and indoor path planning. Compared with other technologies, inertial measurement unit (IMU)-based indoor positioning requires no additional equipment and has a ...
Menghao Fan, Jia Li, Weibing Wang
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International Journal of Applied Earth Observations and Geoinformation, 2021 High-quality leaf area index (LAI) data is essential for regional and global ecology, climate and environment research. However, there are still many quality problems in the continuity of current LAI time series products.
Anqi Huang +3 more
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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
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Hybrid Adaptive Cubature Kalman Filter with Unknown Variance of Measurement Noise
Sensors, 2018 This paper is concerned with the filtering problem caused by the inaccuracy variance of measurement noise in real nonlinear systems. A novel weighted fusion estimation method of multiple different variance estimators is presented to estimate the variance
Yuepeng Shi +4 more
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