Design and Implementation of an Indoor Positioning System on SDR Platform
Date Issued
2014
Date
2014
Author(s)
Tsai, Meng-Ying
Abstract
As the vigorous development of the market of the smart mobile devices, personal services are gradually getting more and more attention. Because of this, Location based services (LBSs) are becoming a vital part of the life. Location based services refer to provide the services or the relevant information around the user. Hence, in order to find the location of the user at the right time, positioning technologies play an important role in this application. Undoubtedly, Global Positioning System (GPS) is the most popular positioning technology in the outdoor environment. However, due to the signal of the satellite is too weak in the indoor environment, the global positioning system can not provide accurate location of the user. Therefore, the design of the indoor positioning system (IPS) has become a hot research topic nowadays. In this thesis, we provide the complete solution of the indoor positioning system. We design a simple and low power consumption wearable signal transmitter to be the indoor positioning target. And, we design and arrange several synchronized indoor positioning software receivers in the indoor environment to receive the signal. Finally, through the digital signal processing, we can find the location of the target. In addition, for the purpose of validating the reliability and feasibility of our indoor positioning system, we use software defined radio (SDR) to build an indoor positioning system platform and record the signal practically. From the results of the field trial, our indoor positioning system is compatible with three indoor environments with different size and can provide high accuracy of positioning.
Subjects
Indoor Positioning System
Software Defined Radio
Type
thesis
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