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Abstract: The aim of the thesis was to optimize the UWB first path search algorithm performance on a dedicated DSP. Development was focused on enabling various optimizations tech- niques of the DSP architecture. Insights into how the CIR is correlated, how the FP algo- rithm determines the actual FP are presented. The purpose of optimizing the FP algorithm was to improve the performance and lower the power consumption of the UWB system. The highly optimized DSP architecture contains numerous optimization techniques that needed to be discovered. With the optimization techniques provided by the DSP architec- ture, we were able to boost the FP algorithm performance by a significant amount, with potential for further enhancements.
Keywords: UWB, optimization, DSP, first path search, parallel data paths, intrinsic functions, dual Harvard
Published in DKUM: 06.02.2025; Views: 0; Downloads: 0

Abstract: V podjetjih je za dvig učinkovitosti ključnega pomena sledenje materialov, polizdelkov in končnih izdelkov. Sistemi, ki omogočajo sledenje v notranjih prostorih, so sistemi za notranje sledenje RTLS (angl. Real Time Location Systems). Diplomsko delo analizira razlike v natančnosti lociranja objektov s pomočjo testnih RTLS dveh različnih proizvajalcev, dostopnih v Sloveniji. Razlike v meritvah sistemov nastajajo zaradi komponent, ki sestavljajo RTLS in zaradi prostora, v katerem se izvajajo meritve. Dejavniki, ki vplivajo na natančnost meritev, so opisani v teoretičnem delu naloge. V praktičnem delu naloge je opisana izvedba meritev, za katere sta bila uporabljena dva testna RTLS, katerih delovanje temelji na UWB (angl. Ultra Wideband) tehnologiji. Analiza podatkov z uporabo statističnih testov je pokazala, da med testnima sistemoma ni statistično značilnih razlik med izmerjenimi vrednostmi koordinat x, obstajajo pa statistično značilne razlike med izmerjenimi vrednostmi koordinat y. Odstopanja izmerjenih vrednosti od dejanskih vrednosti obeh koordinat v 20 % meritev za oba analizirana sistema niso bila v obljubljenem intervalu proizvajalcev. Populacijsko povprečje izvedenih meritev se statistično značilno razlikuje od napake, ki jo poročata proizvajalca. Pri testnih sistemih se lahko pričakujejo odstopanja od zagotovljene natančnosti implementiranega industrijskega sistema. Vzrokov za odstopanja nismo preučevali.
Keywords: meritve, natančnost, RTLS, lociranje, UWB
Published in DKUM: 03.11.2022; Views: 464; Downloads: 44
Full text (6,29 MB)

Abstract: Ultra-wideband is becoming a key technological element in the consumer industry, providing a safe and reliable way to enable more precise location services as well as secure access to a multitude of systems. Ultra-wideband radar is a subset of that technology, providing not only device-free localization techniques but also complementing expensive medical-level devices or providing means to measure vital signs in a more accessible way. Ultra-wideband radars embedded in smart devices like smartphones can be used for presence detection, gesture recognition, and vital sign monitoring (i.e., breathing detection and heart rate monitoring). Ultra-wideband radar is still in development, and during that process it needs to be well-tested to match the customers’ expectations and standards that apply to the technology. In this master’s thesis, we start by providing a brief overview of ultra-wideband technology. Then we propose and develop an automated measurement system for UWB radar that tests the radio frequency functionality of a radar device, its compliance with standards, frequency regulations, and use-case testing. Performing measurements to test the aforementioned radar devices is a time-consuming and cumbersome task that can be replaced by our developed automated measurement system. We demonstrate the advantages in terms of reduced measurement time and improved test reproducibility, resulting in a well-tested ultra-wideband radar device during the development cycle.
Keywords: automated system, channel impulse response, IR-UWB, radar
Published in DKUM: 17.02.2022; Views: 1094; Downloads: 14
Full text (4,50 MB)