Sökning: "thesis nfc"

Visar resultat 1 - 5 av 66 uppsatser innehållade orden thesis nfc.

  1. 1. Multiplexing NFC Antennas : An evaluation of the technique and its limitations

    Kandidat-uppsats, Jönköping University/JTH, Avdelningen för datavetenskap

    Författare :Viktor Gustafsson; Per Ottosson; [2023]
    Nyckelord :AAT; BER; DSR; Impedance; Multiplexer; NFC; Wireless Technology;

    Sammanfattning : Introduction This study aims to investigate the possibility of driving multiple NFC antennas with a single NFC-controller by using a multiplexer. An artifact was developed and experiments were conducted in order to evaluate the design choice and in addition, to observe the impact of a multiplexer in an NFC system with respect to the number of successful tag detections, bit error rate (BER), the utilization of automatic antenna tuning (AAT) and the physical distance to the NFC tag. LÄS MER

  3. 2. Evaluation of Methods for Sound Source Separation in Audio Recordings Using Machine Learning

    Master-uppsats, Linköpings universitet/Kommunikationssystem

    Författare :Amanda Gidlöf; [2023]
    Nyckelord :Sound source separation; signal processing; audio processing; speech enhancement; speaker identification; speech separation; speech processing; speaker separation; single channel; multi channel; cocktail party problem; machine learning; neural network; deep learning; deep neural network; convolutional network; dual-path network; filter-and-sum network; recurrent network; beamforming;

    Sammanfattning : Sound source separation is a popular and active research area, especially with modern machine learning techniques. In this thesis, the focus is on single-channel separation of two speakers into individual streams, and specifically considering the case where two speakers are also accompanied by background noise. LÄS MER

  4. 3. Content determination of explosive precursors and narcotic salts using 35Cl-nuclear magnetic resonance

    Uppsats för yrkesexamina på grundnivå, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Sandra Bergqvist; [2023]
    Nyckelord :Nuclear magnetic resonance NMR ; explosive precursors; narcotic salts; method validation.;

    Sammanfattning : Explosive precursors and narcotic salts are chemicals contributing to an undesirabledevelopment of the Swedish society, both in terms of criminal activities and harm to the environment. Reducing the illegal use of these chemicals is important in the work towards a safer society. LÄS MER

  5. 4. Coexistence of Dual Inductive Wireless Power Transfer Systems

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Eneas Hållsten; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Wireless power transfer is emerging into everyday life. The idea is to create a more convenient way of charging, or at least powering, devices. LÄS MER

  7. 5. How to Design an Onboarding Experience for Passive Wearable NFC Payment Devices

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Victoria Hendered; [2022]
    Nyckelord :Onboarding; Tangible Interaction; Human Actions; Wearable Technology; Onboarding; Tangible Interaction; Mänskliga Rörelser; Wearable Teknik;

    Sammanfattning : The rapidly increasing popularity in wearables in combination with countries such as Sweden moving towards a cashless society creates a market for wearable payment devices. NFC technology is already used in traditional payment cards to provide contactless payment and is now also being used in other forms such as rings or bracelets to provide smart payment devices. LÄS MER