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Mobile Phone Positioning: Improving GPS Performance

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Most mobile phones now include positioning capabilities, which rely on a GPS receiver or the triangulation of cellular base stations. The device location is used in popular applications, such as Google Maps, and is also a requirement for processing emergency calls. However, the availability, the speed, and the accuracy of the position is highly variable.

In this talk, I will present some of my PhD work on the acquisition of GPS signals on mobile phones. I will introduce the basics of GPS and cellular networks operations. I will show how the stability of the cellular networks can be used to improve the acquisition of GPS signals. Results of experiments on European (GSM) and North American (CDMA2000) networks will be presented.

This talk is part of the Cavendish Astrophysics Seminars series.

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