Results 1 to 10 of about 750,607 (308)

Performance evaluation of mobile U-navigation based on GPS/WLAN hybridization [PDF]

open access: yes, 2012
This paper present our mobile u-navigation system. This approach utilizes hybridization of wireless local area network and Global Positioning System internal sensor which to receive signal strength from access point and the same time retrieve Global ...
Mohamad, Mohd. Murtadha   +3 more
core   +3 more sources

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

GeoNotes: A Location-based Information System for Public Spaces [PDF]

open access: yes, 2002
The basic idea behind location-based information systems is to connect information pieces to positions in outdoor or indoor space. Through position technologies such as Global Positioning System (GPS), GSM positioning, Wireless LAN positioning ...
Cöster, Rickard   +4 more
core   +2 more sources

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

Characterization of a Multi-User Indoor Positioning System Based on Low Cost Depth Vision (Kinect) for Monitoring Human Activity in a Smart Home [PDF]

open access: yes, 2015
An increasing number of systems use indoor positioning for many scenarios such as asset tracking, health care, games, manufacturing, logistics, shopping, and security. Many technologies are available and the use of depth cameras is becoming more and more
Abouchi, Nacer   +5 more
core   +4 more sources

High dynamic global positioning system receiver [PDF]

open access: yes, 1986
A Global Positioning System (GPS) receiver having a number of channels, receives an aggregate of pseudorange code time division modulated signals. The aggregate is converted to baseband and then to digital form for separate processing in the separate ...
Hurd, W. J.
core   +1 more source

Modeling Selective Availability of the NAVSTAR Global Positioning System [PDF]

open access: yes, 1990
As the development of the NAVSTAR Global Positioning System (GPS) continues, there will increasingly be the need for a software centered signal model. This model must accurately generate the observed pseudorange which would typically be encountered.
Braasch, Michael
core   +1 more source

GPS and property surveying [PDF]

open access: yes, 2015
In 2010 the Global Positioning System (GPS) developed by the United States military was the best known Global Navigation Satellite System (GNSS). Others included Russia’s GLONASS, China’s COMPASS and Europe’s GALILEO systems.
Drummond, J.
core  

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