There is today a large demand for indoor positioning information from different application areas
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چکیده
Description of the project: There is today a large demand for indoor positioning information from different application areas. On the other hand it is well known that indoor, the GPS signals are too weak to be received, or practically absent, due to the presence of building materials and walls. In addition, due to the relatively narrow bandwidth used by these systems, multipath propagation can cause inaccuracies of several hundreds of meters in the GPS position estimation, which are unacceptable for the described applications. Thus, in indoor environments, the service provided by this system is usually not available, unreliable or inaccurate [1]. For these reasons new solutions need to be developed.
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تاریخ انتشار 2007