Results 11 to 20 of about 737,626 (208)

Mode Inference using enhanced Segmentation and Pre-processing on raw Global Positioning System data

open access: yesMeasurement + Control, 2020
Many applications use the Global Positioning System data that provide rich context information for multiple purposes. Easier availability and access of Global Positioning System data can facilitate various mobile applications, and one of such ...
Asif Nawaz   +6 more
doaj   +1 more source

Vulnerability analysis of satellite-based synchronized smart grids monitoring systems [PDF]

open access: yes, 2014
The large-scale deployment of wide-area monitoring systems could play a strategic role in supporting the evolution of traditional power systems toward smarter and self-healing grids. The correct operation of these synchronized monitoring systems requires
Ahmed faheem Zobaa   +19 more
core   +1 more source

A commentary of Hyper-accurate position in MIT Technology Review 2021

open access: yesFundamental Research, 2021
The positioning accuracy improvement of satellite navigation system support the development of industries related to high accuracy positioning. The BeiDou global satellite navigation system (BDS-3) started providing full-scale global services in 2020 ...
Xia Ren, Yuanxi Yang
doaj   +1 more source

Real-time precision pedestrian navigation solution using Inertial Navigation System and Global Positioning System

open access: yesAdvances in Mechanical Engineering, 2015
Global Positioning System and Inertial Navigation System can be used to determine position and velocity. A Global Positioning System module is able to accurately determine position without sensor drift, but its usage is limited in heavily urbanized ...
Yong-Jin Yoon   +3 more
doaj   +1 more source

Single-Frequency Precise Point Positioning Using Regional Dual-Frequency Observations

open access: yesSensors, 2021
High-precision and low-cost single-frequency precise point positioning (SF-PPP) has been attracting more and more attention in numerous global navigation satellite system (GNSS) applications.
Junping Zou, Ahao Wang, Jiexian Wang
doaj   +1 more source

Research on a mixed prediction method to vehicle integrated navigation systems

open access: yesInternational Journal of Advanced Robotic Systems, 2019
Aiming to improve the positioning accuracy of vehicle integrated navigation system (strapdown inertial navigation system/Global Positioning System) when Global Positioning System signal is blocked, a mixed prediction method combined with radial basis ...
Di Zhao, Huaming Qian, Dingjie Xu
doaj   +1 more source

Iterative least squares method for global positioning system [PDF]

open access: yesAdvances in Radio Science, 2011
The efficient implementation of positioning algorithms is investigated for Global Positioning System (GPS). In order to do the positioning, the pseudoranges between the receiver and the satellites are required.
Y. He, A. Bilgic
doaj   +1 more source

Indoor positioning based on global positioning system signals [PDF]

open access: yes, 2012
The Global Positioning System (GPS) is highly reliable and accurate when used outdoors.However, in indoor environments, due to the additional signal loss incurred by the walls of the buildings, the detection and decoding of GPS signals becomes a ...
Bozkurt, Ayhan   +4 more
core   +2 more sources

Research Article. Improved Dual Frequency PPP Model Using GPS and BeiDou Observations

open access: yesJournal of Geodetic Science, 2017
This paper introduces a new dual-frequency precise point positioning (PPP) model, which combines GPS and BeiDou observations. Combining GPS and BeiDou observations in a PPP model offers more visible satellites to the user, which is expected to enhance ...
Afifi A., El-Rabbany A.
doaj   +1 more source

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   +1 more source

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