Sökning: "Digital data transmission"

Visar resultat 1 - 5 av 98 avhandlingar innehållade orden Digital data transmission.

  1. 1. mm-Wave Data Transmission and Measurement Techniques: A Holistic Approach

    Författare :Dhecha Nopchinda; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; estimation theory; data transmission experiment; spectral efficiency; microwave network analysis; communication system; millimeter wave mm-wave system; mutual coupling effects; spectrally efficient frequency division multiplexing SEFDM ; vector network analyzer; wideband measurement.; coherent optical system; impairment compensation algorithm; identification theory; multiplier based transmitter; digital signal processing; Active load pull; linear measurement technique;

    Sammanfattning : The ever-increasing demand on data services places unprecedented technical requirements on networks capacity. With wireless systems having significant roles in broadband delivery, innovative approaches to their development are imperative. LÄS MER

  2. 2. On High-Speed Digital-to-Analog Converters and Semi-Digital FIR Filters

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Mohammad Reza Sadeghifar; J Jacob Wikner; Robert Hägglund; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DAC; RFDAC; SDFIR; FIR; semi-digital FIR filter; digital-to-analog converter; D A converter; data converter; mixed-signal integrated circuits; mixer DAC; IQ modulator; transmitter;

    Sammanfattning : High-speed and high-resolution digital-to-analog converters (DACs) are vital components in all telecommunication systems. Radio-frequency digital-to-analog converter (RFDAC) provides high-speed and high-resolution conversion from digital domain to an analog signal. RFDACs can be employed in direct-conversion radio transmitter architectures. LÄS MER

  3. 3. Image analysis and interactive visualization techniques for electron microscopy tomograms

    Detta är en avhandling från ; Centre for Image Analysis, Swedish University of Agricultural Sciences

    Författare :Lennart Svensson; Sveriges lantbruksuniversitet.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Images are an important data source in modern science and engineering. A continued challenge is to perform measurements on and extract useful information from the image data, i.e., to perform image analysis. LÄS MER

  4. 4. Mobile Supported e-Government Systems Analysis of the Education Management Information System (EMIS) in Tanzania

    Detta är en avhandling från Karlstad : Karlstad University

    Författare :Gudrun Wicander; John-Sören Pettersson; Anders G. Nilsson; Peter Rönnlund; Louise Yngström; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; e-Government systems; mobile telephony; SMS; blended digital system; education management; information systems; systems theory; developing countries; Tanzania; ICT4D; M4D; Information Systems; Informatik;

    Sammanfattning : e-Government systems are considered by both governments and international organisations to improve administration and management. In Tanzania, an e-government system for education administration, EMIS, is partly implemented but shows several limitations. LÄS MER

  5. 5. Submerged Transmission in Wave Energy Converters Full Scale In-Situ Experimental Measurements

    Detta är en avhandling från Karlstad : Karlstad University

    Författare :Erland Strömstedt; Mats Leijon; Hans Bernhoff; Jan-Olov Aidanpää; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wave energy converter; direct drive; submerged transmission; piston rod; seal housing; sealing system; laser triangulation sensor; offshore measurements; relative displacement; vibrations; tilt angle; tilting; wear estimation.; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Different wave power technologies are in development around the world in different stages of prototype testing. So far only a few devices have been deployed offshore at full scale for extended periods of time. Little data is published about how these different devices perform. LÄS MER