Analysis of a time synchronization based UWB indoor positioning system

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Dr. Szabó Sándor
Department of Networked Systems and Services

Nowadays, with IoT systems dominating the IT market, UWB based IoT systems have gained respectful significance as well, thanks to the many opportunities the aforementioned technology offers. One of the most important aspects of UWB technology is real-time indoor locating systems. These systems offer position tracking at places where it wasn’t possible a few years ago - lacking the appropriate technology. In this thesis I study the possible operating modes (synchronous-asynchronous) and components of such systems. My studies and measures were based on an already developed and working system.

To begin my task, I studied UWB technology and the corresponding parts of the appropriate standard (IEEE 802.15.4). This included learning about the basics of embedded system development for the components of the system as well, in order to acquire measurement data out from the available system. It is important to note, that the system I am using works in asynchronous way, so in order to study the synchronous mode, I had to execute hardware changes on the components of the system, also.

After studying the technology and the system, my goal was to create a basic measurement processing system, that can help me analyze the different operating modes. For this, I created a data analyzing entity, that can either accept actual measurement data from the system or can simulate and analyze the appropriate working modes with generated data.

As to finalizing my work, I tried to execute the necessary hardware changes on the components of the system, in order to be able to compare actual measurement data with data from an asynchronous system. In this study I explain the whole process with fine details, including the challenges and the different workarounds applied.


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