Essays about: "Electronic Network"

Showing result 21 - 25 of 178 essays containing the words Electronic Network.

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

    University essay from KTH/Tillämpad fysik

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

    Abstract : 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. READ MORE

  3. 22. Magnetic and Dielectric Design of Auxiliary Power Supply for HVDC Applications : A high-frequency transformer with high power transfer capability and high voltage electrical insulation

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Henrik Johansson; [2022]
    Keywords : Auxiliary Power Supply; HVDC; Inductive Power Supply; High Voltage Insulation; High-Frequency Transformer; Hjälpkraftsförsörjning; HVDC; Induktiv Kraftförsörjning; Högspänningsisolation; Högfrekvenstransformator;

    Abstract : It is anticipated that massive amounts of energy will be transferred long distances via High-Voltage Direct Current (HVDC) links in the future and the prospect of having meshed HVDC grids is envisioned, for example the European super grid. Such a power system would benefit greatly if HVDC circuit breakers could reliably clear faults within the HVDC network. READ MORE

  4. 23. On the Viability of Digital Cash in Offline Payments

    University essay from Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Author : Joakim Holgersson; John Enarsson; [2022]
    Keywords : Digital cash; offline payments; anonymous payments; digital coin; electronic coin ; Digitala kontanter; offlinebetalningar; anonyma betalningar; digitala mynt; elektroniska mynt;

    Abstract : Background. As the financial systems around the world become more digitized with the use of a card and mobile payments - we see a decrease in willingness to accept cash payments in many countries. These digital payments require a stable network connection to be processed in real-time. READ MORE

  5. 24. Gunshot Detection from Audio Streams in Portable Devices

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Linnea Bokelund; Ellen Grane; [2022]
    Keywords : machine learning; gunshot detection; convolutional neural networks; sound event detection; portable devices; Technology and Engineering;

    Abstract : Machine learning and artificial neural networks can be used to classify or detect specific sound events in audio signals. Gunshot detection is one use case for such networks and can be used to help law enforcement by alerting officers or triggering camera recordings. READ MORE

  6. 25. Dual-polarized fully-metallic Vivaldi antenna array in a triangular lattice

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Omar Orgeira Alvarez; [2022]
    Keywords : Base station; Mobile communications; Phased arrays; Vivaldi antenna; Stripline; Basstation; Mobilkommunikation; Phased arrays; Vivaldi-antenn; Stripline;

    Abstract : New mobile communication generations need electromagnetic sensors capable of steering their high-directive beams towards the users. Conventional base stations use square lattice phased arrays to accomplish this task. These arrays are composed of a large number of radiating elements to achieve the required high directivity and scanning capabilities. READ MORE