Sökning: "multipath"

Visar resultat 16 - 20 av 112 uppsatser innehållade ordet multipath.

  1. 16. Multipath transport protocol offloading

    Master-uppsats, Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013); Karlstads universitet/Avdelningen för datavetenskap

    Författare :Rebecka Alfredsson; [2022]
    Nyckelord :QUIC; multipath; hardware offloading; DPDK; crypto; DPU;

    Sammanfattning : Recently, we have seen an evolution of programmable network devices, where it is possible to customize packet processing inside the data plane at an unprecedented level. This is in contrast to traditional approaches, where networking device functionality is fixed and defined by the ASIC and customers need to wait possibly years before the vendors release new versions that add features required by customers. LÄS MER

  3. 17. Development of GNSS Type Processing for the Characterization of the Mobile Propagation Channel

    Master-uppsats, KTH/Fastigheter och byggande

    Författare :Adrien Bardou; [2021]
    Nyckelord :LMS Channel; Multi-paths; GNSS; SCHUN; Simulation; LMS-kanal; flerv¨agar; GNSS; SCHUN; Simulering;

    Sammanfattning : Mobile communication systems are undergoing significant development on increasingly wide frequency bands (5G in particular). To support this development, a detailed characterization of the propagation of electromagnetic waves in L, S and C band between a station (satellite, airborne or ground) and a mobile platform is necessary to analyze and model the phenomena that have a decisive impact on the performance, availability and operability of systems. LÄS MER

  4. 18. Multipath Modelling for 60 GHz Short Range Radar

    Kandidat-uppsats, Lunds universitet/Matematisk statistik

    Författare :Andre Nüsslein; [2021]
    Nyckelord :Radar; Surveillance; Multipath; Mathematics and Statistics;

    Sammanfattning : If radar surveillance systems are installed near a wall, their radiation is reflected not only from moving objects but also from the wall. In this way, non­existing so­called ghost targets can lead to false detections. This thesis exploits such ghost detections to infer the position and extension of a wall next to a radar sensor. LÄS MER

  5. 19. Ghost target classification using scene models in radar

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Anton Sedin; David Wadmark; [2021]
    Nyckelord :Technology and Engineering;

    Sammanfattning : In surveillance contexts, radars can be used to monitor an area, detecting and tracking moving objects inside it. Monitored areas in urban environments often contain many surfaces that reflect radar waves, which can have the undesired consequence of a single object producing multiple tracks due to multipath propagation effects. LÄS MER

  7. 20. Improvement of the robustness and performance of time of arrival algorithms

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

    Författare :Kristian Huotila; [2021]
    Nyckelord :;

    Sammanfattning : 5G offers several new improvements compared to its predecessors, such as higher speeds, lower latency and larger capacity. In order to ensure this, time of arrival algorithms are used in the Radio Access Networks for several purposes. Some of them are 3D positioning of User Equipment and synchronization. LÄS MER