Results 11 to 20 of about 79,068 (332)

AUV Positioning Method Based on Tightly Coupled SINS/LBL for Underwater Acoustic Multipath Propagation

open access: yesSensors, 2016
This paper researches an AUV (Autonomous Underwater Vehicle) positioning method based on SINS (Strapdown Inertial Navigation System)/LBL (Long Base Line) tightly coupled algorithm.
Tao Zhang   +4 more
doaj   +1 more source

A Variational Bayesian Based Strong Tracking Interpolatory Cubature Kalman Filter for Maneuvering Target Tracking

open access: yesIEEE Access, 2018
In tracking a maneuverable target, a proper estimation method with better filtering accuracy, stronger robustness, and faster convergence speed is crucial to the tracking system.
Jian Wang, Tao Zhang, Xiang Xu, Yao Li
doaj   +1 more source

Symmetry-preserving Observers [PDF]

open access: yes, 2008
This paper presents three non-linear observers on three examples of engineering interest: a chemical reactor, a non-holonomic car, and an inertial navigation system. For each example, the design is based on physical symmetries.
Bonnabel, S., Martin, Ph., Rouchon, P.
core   +3 more sources

An Extensible Positioning System for Locating Mobile Robots in Unfamiliar Environments

open access: yesSensors, 2019
In this paper, an extensible positioning system for mobile robots is proposed. The system includes a stereo camera module, inertial measurement unit (IMU) and an ultra-wideband (UWB) network which includes five anchors, one of which is with the unknown ...
Xiaosu Xu   +3 more
doaj   +1 more source

Learning Pose Estimation for UAV Autonomous Navigation and Landing Using Visual-Inertial Sensor Data [PDF]

open access: yes, 2020
In this work, we propose a robust network-in-the-loop control system for autonomous navigation and landing of an Unmanned-Aerial-Vehicle (UAV). To estimate the UAV’s absolute pose, we develop a deep neural network (DNN) architecture for visual-inertial ...
bateux   +11 more
core   +1 more source

Real-Time Terrain-Following of an Autonomous Quadrotor by Multi-Sensor Fusion and Control

open access: yesApplied Sciences, 2021
For the application of the autonomous guidance of a quadrotor from confined undulant ground, terrain-following is the major issue for flying at a low altitude.
Yuan Yang   +5 more
doaj   +1 more source

A Novel Hybrid of a Fading Filter and an Extreme Learning Machine for GPS/INS during GPS Outages

open access: yesSensors, 2018
In this paper, a novel algorithm based on the combination of a fading filter (FF) and an extreme learning machine (ELM) is presented for Global Positioning System/Inertial Navigation System (GPS/INS) integrated navigation systems.
Di Wang, Xiaosu Xu, Yongyun Zhu
doaj   +1 more source

A Robust Parallel Initialization Method for Monocular Visual-Inertial SLAM

open access: yesSensors, 2022
In order to improve the initialization robustness of visual inertial SLAM, the complementarity of the optical flow method and the feature-based method can be used in vision data processing.
Min Zhong   +3 more
doaj   +1 more source

A Coarse Alignment Method Based on Digital Filters and Reconstructed Observation Vectors

open access: yesSensors, 2017
In this paper, a coarse alignment method based on apparent gravitational motion is proposed. Due to the interference of the complex situations, the true observation vectors, which are calculated by the apparent gravity, are contaminated.
Xiang Xu   +4 more
doaj   +1 more source

AUV Underwater Positioning Algorithm Based on Interactive Assistance of SINS and LBL

open access: yesSensors, 2015
This paper studies an underwater positioning algorithm based on the interactive assistance of a strapdown inertial navigation system (SINS) and LBL, and this algorithm mainly includes an optimal correlation algorithm with aided tracking of an SINS ...
Tao Zhang, Liping Chen, Yao Li
doaj   +1 more source

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