Сообщение

Mathematical Modeling of Data Transmission in Ultra-Wideband Real-Time Local Positioning Systems

 
 orcid Anton Belov, orcid Ekaterina Khutornaya

Saint Petersburg State Marine Technical University,
St. Petersburg, 190121, Russian Federation

DOI 10.31854/2307-1303-2025-13-4-31-53

EDN JVKANN

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Abstract

Problem statement. Ultra-wideband real-time local positioning systems use pulsed radio signals with an effective spectrum width of at least 500 MHz for data transmission. They feature high localization accuracy (10–30 cm) and transmission speeds (up to 27.24 Mbps, with potential for growth to 480 Mbps). This makes them an essential component in building multi-purpose systems for monitoring the movements of people and vehicles, access control (without barriers), including access to hazardous areas, etc. However, the range of such systems rapidly decreases with increasing bit rate and is also dependent on many other factors. At the same time, a universal system must be fast enough to solve problems such as vehicle collision avoidance, robot control, etc. Under these conditions, the successful application of ultra-wideband solutions requires an operational mechanism for evaluating key system parameters depending on a host of influencing factors, such as signal spectral characteristics, equivalent isotropically radiated power (EIRP) spectral density standards, transceiver settings, permissible bit error rates, etc. The goal of the work is to study the factors influencing the key parameters of ultra-wideband local positioning systems in real time and, based on this, develop an evaluation model of the transmission process as a tool for system design and maintenance. Methods used: analysis of data on influencing factors, construction and superposition of a propagation loss model and radio link budget models, working with a common model, and deriving patterns of key parameter changes at boundary values of the influencing factors. Novelty. A single common model systematizes the factors of two types of models that influence transmission range. Result. A tool for designing and maintaining ultra-wideband real-time local positioning systems has been developed, enabling prediction of their behavior under different combinations of influencing factors, in particular, ensuring maximum range at a given bit rate. Practical significance. The presented study can be used as a methodological support for classes introducing ultra-wideband real-time local positioning systems and estimating their range depending on the transmission rate and other factors.

Keywords

ultra-wideband communications, ultra-wideband signals, real-time local positioning system, equivalent isotropically radiated power spectral density, ultra-wideband real-time local positioning systems, bit error rate

Reference for citation

Belov A., Khutornaya E. Mathematical Modeling of Data Transmission in Ultra-Wideband Real-Time Local Positioning Systems // Telecom IT. 2025. Vol. 13. Iss. 4. PP. 31‒53 (in Russian). DOI: 10.31854/2307-1303-2025-13-4-31-53. EDN: JVKANN
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