With the rapid development in hardware and software of wireless communications, applications of real-time positioning systems have been widely used; among them the Global Positioning System is the most popular [1]. However, the satellite signal is obstructed by the sheltering effect of the building and becomes too weak to be applicable for indoor positioning. Instead, the wireless sensor networks techniques are suitable for indoor positioning, for which many related researches and applications have been proposed. Based on the ZigBee wireless technology operating on the IEEE 802.15.4 physical radio specification, we use the Received Signal Strength Indicator together with the Signal Patent Matching method for positioning. Furthermore, to enhance accuracy of positioning, we adopt a sampling method to compare on-line samples as well as the rotation sampling positioning method. ? 2011 Springer-Verlag.
Relation:
Communications in Computer and Information Science 265 CCIS (PART 1) , pp. 77-81
