An Indoor-Outdoor Positioning System Based on the Combination of GPS and UWB Sensors

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Provided by: Journal of Theoretical and Applied Information Technology
Topic: Networking
Format: PDF
Today localization techniques are gaining popularity because of the high interest for many business cases as well as for emergency/security scenarios including real-time tracking, navigation, and clock synchronization. The need to obtain a precise position in a short time at any point, leads to use an efficient navigation system. In outdoor environments, GNSS (GPS, Galileo) is used and provide a good accuracy, but in the indoor environments, GNSS signal is deteriorated due to the signal degradation by different obstacles, so other techniques are used to locate users such as IR, RF, cellular network or GNSS repeater
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