Sökning: "positioning system"

Visar resultat 11 - 15 av 263 avhandlingar innehållade orden positioning system.

  1. 11. Reliable RFID Communication and Positioning System for Industrial IoT

    Författare :Chuanying Zhai; Hannu Tenhunen; Zhuo Zou; Jari Nurmi; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 2.4-GHz UWB hybrid positioning; industrial IoT; MF-TDMA; QoS; reliable communication; RFID; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : The Internet of Things (IoT) has the vision to interconnect everything of the physical world and the virtual world. Advanced automated and adaptive connectivity of objects, systems, and services is expected to be achieved under the IoT context, especially in the industrial environment. Industry 4. LÄS MER

  3. 12. Hardware biases and their impact on GNSS positioning

    Författare :Martin Håkansson; Anna B. O. Jensen; Milan Horemuz; Jan Johansson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GNSS positioning; Hardware biases; multi-GNSS; GPS; GLONASS; Galileo; BeiDou; Geodesy and Geoinformatics; Geodesi och geoinformatik;

    Sammanfattning : GNSS hardware biases appear in code and phase observations, and originates both from the receiver and satellite hardware. These biases influence the accuracy in precise GNSS positioning if not handled properly. LÄS MER

  4. 13. Radio Resource Management in Bunched Personal Communication Systems

    Författare :Miguel Berg; KTH; []
    Nyckelord :radio resource management; dynamic channel allocation; power control; interference avoidance; link-gain matrix; path-loss measurements; microcells; mobile positioning; trilateration;

    Sammanfattning : The traditional way of increasing capacity in a wirelesscommunication system has been cell splitting and fixedchannel-allocation based on prediction tools. However, theplanning complexity increases rapidly with the number of cellsand the method is not suitable for the large temporal andspatial traffic variations expected in the future. LÄS MER

  5. 14. Interference in Global Positioning System Signals and its Effect on Positioning and Remote Sensing

    Författare :Oscar Isoz; Oliver Julien; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Atmosfärsvetenskap; Atmospheric Science;

    Sammanfattning : GPS and the other GNSS systems (GLONASS, Galileo and Beidou-2/COMPASS) is used to position billions of devices and is saving lives, the environment and money on a daily basis. GNSS enables anyone to determine their own unique global location. LÄS MER

  7. 15. Communication and Positioning Uncertainties in Cooperative Intelligent Transportation Systems

    Författare :Erik M Steinmetz; RISE; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cooperative positioning; resource allocation; cooperative intelligent transportation systems; packet reliability; vehicular communication;

    Sammanfattning : The current road transport system has problems with both safety and efficiency. Future intelligent transportation systems (ITS) are envisioned to alleviate these problems. In particular, cooperative ITS, where vehicles are connected to each other and the cloud, will allow vehicles to collaborate and share both sensor and control information. LÄS MER