Results 21 to 30 of about 79,068 (332)

Trajectory Tracking of UAVs Using Sigmoid Tracking Differentiator and Variable Gain Finite-Time Extended State Observer

open access: yesDrones, 2022
The problem of quadrotor attitude and position control is considered in the presence of generally lumped disturbances: external disturbances and model uncertainty.
Wenxing Zhu   +3 more
doaj   +1 more source

Distributed data fusion algorithms for inertial network systems [PDF]

open access: yes, 2008
New approaches to the development of data fusion algorithms for inertial network systems are described. The aim of this development is to increase the accuracy of estimates of inertial state vectors in all the network nodes, including the navigation ...
Allerton, David J., Jia, Huamin
core   +1 more source

Underwater Positioning Algorithm Based on SINS/LBL Integrated System

open access: yesIEEE Access, 2018
The interactive assistance of a strap-down inertial navigation system (SINS) and a long baseline (LBL) underwater positioning algorithm based on time of arrival is studied, and this algorithm mainly includes a solution algorithm of equivalent sound ...
Tao Zhang, Liping Chen, Yaxiong Yan
doaj   +1 more source

Cooperative Inertial Navigation

open access: yesNavigation, 2014
The design of suitable estimator architectures for INS aided by relative measurements and information sharing among an unrestricted community of users is discussed. Both decentralized and centralized estimators are presented. The centralized estimator is based on the Extended Kalman Filter.
Demoz Gebre-Egziabher   +1 more
openaire   +2 more sources

A Novel Artificial Fish Swarm Algorithm for Recalibration of Fiber Optic Gyroscope Error Parameters

open access: yesSensors, 2015
The artificial fish swarm algorithm (AFSA) is one of the state-of-the-art swarm intelligent techniques, which is widely utilized for optimization purposes. Fiber optic gyroscope (FOG) error parameters such as scale factors, biases and misalignment errors
Yanbin Gao   +3 more
doaj   +1 more source

An Adaptive Damping Network Designed for Strapdown Fiber Optic Gyrocompass System for Ships

open access: yesSensors, 2017
The strapdown fiber optic gyrocompass (strapdown FOGC) system for ships primarily works on external horizontal damping and undamping statuses. When there are large sea condition changes, the system will switch frequently between the external horizontal ...
Jin Sun   +5 more
doaj   +1 more source

RIDI: Robust IMU Double Integration

open access: yes, 2017
This paper proposes a novel data-driven approach for inertial navigation, which learns to estimate trajectories of natural human motions just from an inertial measurement unit (IMU) in every smartphone.
AJ Davison   +7 more
core   +1 more source

A Self-Alignment Algorithm for SINS Based on Gravitational Apparent Motion and Sensor Data Denoising

open access: yesSensors, 2015
Initial alignment is always a key topic and difficult to achieve in an inertial navigation system (INS). In this paper a novel self-initial alignment algorithm is proposed using gravitational apparent motion vectors at three different moments and vector ...
Yiting Liu   +5 more
doaj   +1 more source

Georeferencing experiments with UAS imagery [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Comparing typical airborne mapping systems with Unmanned Airborne Systems (UAS) developed for mapping purposes, there are several advantages and disadvantages of both systems.
G. Jóźków, C. Toth
doaj   +1 more source

FOG Random Drift Signal Denoising Based on the Improved AR Model and Modified Sage-Husa Adaptive Kalman Filter

open access: yesSensors, 2016
In order to reduce the influence of fiber optic gyroscope (FOG) random drift error on inertial navigation systems, an improved auto regressive (AR) model is put forward in this paper.
Jin Sun   +4 more
doaj   +1 more source

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