Sökning: "de multiplexing"

Visar resultat 1 - 5 av 34 avhandlingar innehållade orden de multiplexing.

  1. 1. Estimation of synchronization parameters

    Författare :Jaap van de Beek; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal Processing;

    Sammanfattning : This thesis deals with the estimation of synchronization parameters in {Orthogonal Frequency Division Multiplexing} (OFDM) communication systems and in active ultrasonic measuring systems. Estimation methods for the timing and frequency offset and for the attenuation taps of the frequency selective channel are presented and investigated. LÄS MER

  3. 2. All-Fiber System for Photonic States Carrying Orbital Angular Momentum : A Platform for Classical and Quantum Information Processing

    Författare :Alvaro Alarcón; Guilherme B. Xavier; Sebastião de Pádua; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Quantum Communication; Optical communication; Orbital Angular Momentum; Photonic Lantern; Few-mode-fibers;

    Sammanfattning : The protection of confidential data is a fundamental need in the society in which we live. This task becomes more relevant when observing that every day, data traffic increases exponentially, as well as the number of attacks on the telecommunication infra-structure. LÄS MER

  4. 3. Visual and magnetic detection of antimicrobial resistance genes using nanoparticles and isothermal amplification

    Författare :Darío Sánchez Martín; Teresa Zardán Gómez de la Torre; Maria Strömme; Mahiar Hamedi; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DNA amplification; isothermal amplification; visual detection; nanoparticles; VAM-NDA; rolling circle amplification; phi29 DNA polymerase; padlock probes.; Teknisk fysik med inriktning mot nanoteknologi och funktionella material; Engineering Science with specialization in Nanotechnology and Functional Materials;

    Sammanfattning : Antibiotic resistance is becoming an increasing concern, necessitating new ways to diagnose and treat it rapidly and accurately. One proposed solution is the use of nucleic acid amplification tests, capable of detecting resistance in just a few hours, as opposed to the several days that traditional testing methods may require. LÄS MER

  5. 4. Spectrally Precoded OFDM-Design and Analysis

    Författare :Medhat Mohamad; Jaap van de Beek; Rickard Nilsson; Mérouane Debbah; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; OFDM; spectral precoding; out of band emission; 5G; Signalbehandling; Signal Processing;

    Sammanfattning : Despite shifting towards mm-wave bands, the sub-6 GHz band will continue to be a fundamental spectral band in 5G. However, the severe congestion in this band makes a well-constrained spectrum a critical requirementof 5G. LÄS MER

  7. 5. Design of High-Speed Time-Interleaved Delta-Sigma D/A Converters

    Författare :Ameya Bhide; Atila Alvandpour; de la Rosa José M.; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Digital-to-analog (D/A) converters (or DACs) are one the fundamental building blocks of wireless transmitters. In order to support the increasing demand for highdata-ate communication, a large bandwidth is required from the DAC. LÄS MER