Sökning: "TDOA"

Visar resultat 1 - 5 av 40 uppsatser innehållade ordet TDOA.

  1. 1. Two-dimensional Acoustic Localizer : Proof of concept study for an acoustic surveillance device

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Julian Machuca Pihlblad; [2022]
    Nyckelord :;

    Sammanfattning : Public surveillance is evolving with the progress in technology and with it the fear of privacy breach, the feeling of being watched at all times. This thesis aimed to serve as a proof of concept (POC) for a new type of acoustic based surveillance for localizing gunshots in urban environments. LÄS MER

  3. 2. Positioning in Non-Terrestrial Networks

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

    Författare :Soha Emara; [2021]
    Nyckelord :positioning; 5G; satellite; NTN; Technology and Engineering;

    Sammanfattning : In 5G communications, Non-terrestrial Network (NTN) is envisioned to complement Terrestrial Network (TN) to increase network availability, scalability and continuity. Positioning of User Equipment (UE) is critical for the operation of NTN. Currently, NTN uses Global Navigation Satellite System (GNSS) for positioning. LÄS MER

  4. 3. System Level Study of 5G Indoor Industrial Positioning

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

    Författare :Viktor Minchev Pankov; [2020]
    Nyckelord :;

    Sammanfattning : Positioning technologies are starting to play an important role in commercial,industrial, and civil applications. Emergency caller ID and positioning in industrialenvironments are important use cases. LÄS MER

  5. 4. Deployment Strategies for High Accuracy and Availability Indoor Positioning with 5G

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Jesper Ahlander; Maria Posluk; [2020]
    Nyckelord :Indoor positioning; 5G; Cramér-Rao Lower Bound; Time Difference Of Arrival; Round Trip Time; Geometric Dilution Of Precision; Availability; Accuracy; Deployment strategies; Line-Of-Sight; Interference;

    Sammanfattning : Indoor positioning is desired in many areas for various reasons, such as positioning products in industrial environments, hospital equipment or firefighters inside a building on fire. One even tougher situation where indoor positioning can be useful is locating a specific object on a shelf in a commercial setting. LÄS MER

  7. 5. Time Synchronization of TDOA Sensors Using a Local Reference Signal

    Master-uppsats, Linköpings universitet/Kommunikationssystem

    Författare :Alfred Hult; [2020]
    Nyckelord :TDOA; synchronization; sensor network; correlation; time-delay estimation; estimation; UAV; GPS; timing signal;

    Sammanfattning : Synchronization of distributed time difference of arrival (TDOA) sensor networks can be performed using reference signals from GPS satellites. This method provides high accuracy, but is vulnerable to jamming, and is not reliable enough to be used in military applications. LÄS MER