Results 1 to 10 of about 22,006,798 (284)

Three-Dimensional Mapping-Aided Global Navigation Satellite System in Global Navigation Satellite System-Accessible Indoor Areas [PDF]

open access: yesSensors
The Global Navigation Satellite System (GNSS) is commonly used for outdoor positioning. However, its effectiveness diminishes in urban canyons and indoor environments attributed to signal blockage. This study aims to explore the potential of GNSS signals
Hoi-Wah Ng   +3 more
doaj   +2 more sources

Global Navigation Satellite System Spoofing Detection in Inertial Satellite Navigation Systems

open access: yesInventions, 2023
The susceptibility of global navigation satellite systems (GNSSs) to interference significantly limits the possibility of their use. From the standpoint of possible consequences, the most dangerous interference is the so-called spoofing.
Maksim Zharkov   +3 more
doaj   +2 more sources

A dynamic localization network for regional navigation under global navigation satellite system denial environments

open access: yesInternational Journal of Distributed Sensor Networks, 2019
Global navigation satellite system signals are easily distorted by the interferences or disturbances, and global navigation satellite system receivers cannot offer continuous effective navigation results in challenging environments.
Hongwei Zhao, Yue Yan, Xiaozhu Shi
doaj   +2 more sources

A smart city used low-latency seamless positioning system based on inverse global navigation satellite system technology

open access: yesInternational Journal of Distributed Sensor Networks, 2019
People have to move between indoor and outdoor frequently in city scenarios. The global navigation satellite system signal cannot provide reliable indoor positioning services.
Deyue Zou   +7 more
doaj   +2 more sources

Topology-adapting routing strategy for global navigation satellite system

open access: yesInternational Journal of Distributed Sensor Networks, 2017
In order to implement global precision navigation, the global navigation satellite system must rely on information exchange with the ground station to achieve system time synchronization and inter-satellite ranging. For the limitations of ground stations
Yue Zhao, Xianqing Yi, Zhenwei Hou
doaj   +2 more sources

A Novel Perspective of the Kalman Filter from the Rényi Entropy

open access: yesEntropy, 2020
Rényi entropy as a generalization of the Shannon entropy allows for different averaging of probabilities of a control parameter α. This paper gives a new perspective of the Kalman filter from the Rényi entropy.
Yarong Luo   +3 more
doaj   +1 more source

Methods of mutual high-precision navigation based the use of relative modes of anglemeasuring receivers of global navigation satellite systems signals [PDF]

open access: yesКосмические аппараты и технологии, 2022
The article presents the results of experimental studies of mutual high-precision navigation methods for unmanned and specialized transport systems. The proposed methods are based on the application of the relative operating modes of two or more angle ...
D. D. Dmitriev   +4 more
doaj   +1 more source

State transformation extended Kalman filter–based tightly coupled strapdown inertial navigation system/global navigation satellite system/laser Doppler velocimeter integration for seamless navigation of unmanned ground vehicle in urban areas

open access: yesInternational Journal of Advanced Robotic Systems, 2023
With the rapid development of unmanned ground vehicle industry, how to achieve continuous, reliable, and high-accuracy navigation becomes very important. At present, the integrated navigation with global navigation satellite system and strapdown inertial
Xue-Yu Du   +4 more
doaj   +1 more source

Design of Monitoring Framework for Malicious Hidden Process on CloudStack [PDF]

open access: yesJisuanji gongcheng, 2016
Most cloud platforms like CloudStack have no safety plug-in or function to protect the virtual machines.Aiming at this problem,this paper proposes a monitoring framework for malicious hidden process based on Xen virtual machine monitor on CloudStack ...
CUI Jingsong,TIAN Changyou,GUO Chi,YIN Xue
doaj   +1 more source

A Non-Linear Filtering Algorithm Based on Alpha-Divergence Minimization

open access: yesSensors, 2018
A non-linear filtering algorithm based on the alpha-divergence is proposed, which uses the exponential family distribution to approximate the actual state distribution and the alpha-divergence to measure the approximation degree between the two ...
Yarong Luo   +3 more
doaj   +1 more source

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