An indoor positionning system based on the fusion of location information

The applications based on location data is an area that continues to expand and which is part of an overall context of mobility, in the outdoor environment, a Global Navigation Satellite System GNSS (such as GPS or the European Galileo project) is used allowing accuracy of a few meters, but in the indoor area, the signal is deteriorated due to the obstacles, other techniques are used. This paper provides in first part a survey of the indoor localization techniques. After presenting all the existing location technologies, I am going to introduce the system proposed based on the fusion of data from different sources.