Essays about: "antenna"

Showing result 1 - 5 of 470 essays containing the word antenna.

  1. 1. Fast Simulations of Radio Neutrino Detectors : Using Generative Adversarial Networks and Artificial Neural Networks

    University essay from Uppsala universitet/Högenergifysik

    Author : Anton Holmberg; [2022]
    Keywords : Askaryan emission; Radio detection of neutrinos; in-ice propagation; neutrino; Generative adversarial networks; GAN; WGAN; Neural networks; NN; surrogate model; IceCube; deep learning; generative model;

    Abstract : Neutrino astronomy is expanding into the ultra-high energy (>1017eV) frontier with the use of in-ice detection of Askaryan radio emission from neutrino-induced particle showers. There are already pilot arrays for validating the technology and the next few years will see the planning and construction of IceCube-Gen2, an upgrade to the current neutrino telescope IceCube. READ MORE

  2. 2. Reconstruction of the energy of neutrinos with neural networks: Event-by-event uncertainty estimation

    University essay from Uppsala universitet/Högenergifysik

    Author : Ting Wing CHOI; [2022]
    Keywords : ;

    Abstract : When high-energy neutrinos interact with matter, radio waves will be emitted. Radio detectionallows us to measure UHE(> 1016eV) neutrinos by instrumenting a huge volume with a sparsearray of radio antenna stations at a low cost. READ MORE

  3. 3. Kriging radio environment map construction

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Erik Lundqvist; [2022]
    Keywords : Kriging; Radio environment; Statistics; Inverse distance weighting;

    Abstract : With the massive increase in usage of some parts of the electromagnetic spectrum during the last decades, the ability to create real time maps of signal coverage is now more important than ever before. This Masters project is designed to test two different methods of generating such maps with a one second limit to processing time. READ MORE

  4. 4. Particle Simulation and Optimization of a Relativistic Magnetron for HPM Applications

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Wilhelm Thunberg; [2022]
    Keywords : Relativistic Magnetron; FOI Magnetron; TE11; HPM; High Power Microwaves; Particle in cell; MAgic3d;

    Abstract : A relativistic magnetron (RM) is a high-power microwave (HPM) source. The main objective of the RM is to generate directed electromagnetic pulses with high power, which can be used in e.g. HPM weapons and for electromagnetic compatibility testing. READ MORE

  5. 5. A Modular Approach to Design and Implementation of an Active GNSS Antenna

    University essay from Linköpings universitet/Fysik, elektroteknik och matematik; Linköpings universitet/Tekniska fakulteten

    Author : Ulrik Hecktor; [2022]
    Keywords : GNSS; RTK; circular patch antenna; LNA; stacked patch antenna;

    Abstract : This master’s thesis describes the design, implementation and testing of an active antenna intended for use with global navigation satellite systems. The active antenna is composed of two major parts, a dual-band circular patch antenna and a dual-band low-noise amplifier. To streamline the design process, a modular solution was adopted. READ MORE