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http://dx.doi.org/10.12673/jant.2021.25.5.357

Performance Evaluation of UWB Positioning System in Ultra Wideband Indoor Environment  

Roh, Jae-sung (Department of Information & Communication Engineering, Seoil University)
Publication Information
Journal of Advanced Navigation Technology / v.25, no.5, 2021 , pp. 357-362 More about this Journal
Abstract
UWB(ultra wide band) communication systems employ short pulses to transmit information which spreads the signal energy over a very wide frequency spectrum. Received signal-to-noise power ratio of UWB signals is an important factor in determining the accuracy of a positioning system. As the signal to noise power ratio gets higher, positioning errors decrease since noise becomes less effective. Calculation of signal to noise power ratio as a function of communication distance provides important guidelines for the system design. And the performance of a positioning system also depends heavily on the channel model. As a result of the analysis, it was found that the performance of the received signal to noise power ratio according to the communication distance was better in the LOS channel environment than in the Non LOS(line of sight) channel environment. And as the symbol interval of the preamble signal increases at a specific communication distance, the channel capacity of the UWB system increases.
Keywords
Channel capacity; Indoor channel model; Positioning system; Preamble signal; UWB signal;
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