Indoor and Outdoor Cooperative Real-time Positioning System
نویسندگان
چکیده
This paper proposes a cooperative real-time positioning system to solve both indoor and outdoor location tracking problem for disaster aid, we conduct a detailed overview of pre-existing indoor positioning systems, give architecture of cooperative positioning system, and introduce the least square method to improve accuracy of time difference of arrival (TDOA) positioning algorithm. Meanwhile, we address a method of coordinate transformation, which can transform rectangular coordinate to latitude and longitude. With these, the indoor location information and GPS information can be displayed on the maps. Finally, experiment shows the precision of cooperative positioning system, which can satisfy the disaster aid requirements.
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