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Visar resultat 1 - 5 av 7 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Far-field pattern synthesis of transmitarray antennas using convex optimization techniques

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Marie Defives; [2022]
    Nyckelord :Applied physics; Transmitarray antennas; convex optimization; Tillämpad fysik; Transmitarray-antenner; konvex optimering;

    Sammanfattning : Transmitarrays antennas (TAs) can be seen as the planar counterpart of optical lenses. They are composed of thin radiating elements (unit cells) which introduce different local phase shifts on an incident electromagnetic wave, emitted by a primary source, and re-radiate it. LÄS MER

  3. 2. Comparing Control Strategies fora Satcom on the Move Antenna

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Joakim Hellberg; Axel Sundkvist; [2020]
    Nyckelord :Mechatronics; Control; Satcom on-the-Move; SOTM; H2; Optimal Control; Linear QuadraticGaussian LQG ; LQR; Spiral Search; Estimator; Mekatronik; Reglerteknik; Satcomon-the-Move; SOTM; H2; OptimalReglering; LQG; LQR; Spiralsökning; Tillståndsskattare;

    Sammanfattning : Satellite communication is a widely known method for communicating with remote or disaster-strickenplaces. Sometimes, thecommunication can be a matter of life and death,and it is thus vital that it works well. LÄS MER

  4. 3. Design and Evaluation of V/UHF Satellite Communication Antennas for Naval Applications

    Master-uppsats, KTH/Elektroteknisk teori och konstruktion

    Författare :Hampus Bäckström; [2018]
    Nyckelord :Antenna design; Antenna simulations; QHA; Submarine communication; SatCom; MUOS; Legacy; Antenndesign; Antennsimulering; QHA; Ubatskommunikation; Satellitkommunikation; MUOS; Legacy;

    Sammanfattning : In this master thesis, compact antenna design aimed towards naval applicationshave been designed, analyzed and evaluated. There is a recentinterest in the development of compact antennas to be used for smallersubmarine models, and with a smaller hull on a submarine, communicationand antenna systems must be adapted and minimized, which limitsantenna design. LÄS MER

  5. 4. Stabiliserad antennplattform för mobil satellitkommunikation

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Camila Svedmyr; [2016]
    Nyckelord :Satellite communication; SOTM; stabilized platform; flat array antenna; Satellitkommunikation; SOTM; stabiliserad plattform; platt antenn;

    Sammanfattning : This report describes a master thesis project work in machine design. The work has been done at the consulting firm Svea Teknik with DataPath as the customer. The subject of the project was to design a concept for a stabilized platform for a satellite antenna in an on-the-move application. LÄS MER

  7. 5. Video Tracking Algorithm for UnmannedAerial Vehicle Surveillance

    Uppsats för yrkesexamina på avancerad nivå, KTH/Signalbehandling

    Författare :Olov Samuelsson; [2012]
    Nyckelord :;

    Sammanfattning : On behalf of Avia Satcom Co., Ltd. we have conducted research in the eld of Computer Vision. Avia Satcom Co. LÄS MER