Sökning: "satellite Internet"

Visar resultat 21 - 25 av 42 uppsatser innehållade orden satellite Internet.

  1. 21. Crowdsourcing GNSS Jamming Detection and Localization

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Luka Strizic; [2017]
    Nyckelord :gnss; gps; galileo; glonass; beidou; crowdsourcing; smartphones; android; e911; j911; jamming; jammer; detection; localization; pdoa; tdoa;

    Sammanfattning : Global Navigation Satellite Systems (GNSS) have found wide adoption in various applications, be they military, civilian or commercial. The susceptibility of GNSS to radio-frequency interference can, thus, be very disruptive, even for emergency services, therefore threatening people's lives. LÄS MER

  3. 22. Transmitting large amount of data over high-latency satellite networks

    Kandidat-uppsats, Umeå universitet/Institutionen för datavetenskap

    Författare :Michal Kluczek; [2017]
    Nyckelord :;

    Sammanfattning : Satellite link is a type of an unreliable network that is vulnerable to interferences such as disruptive foreign signals on the same frequencies, weather conditions, area coverage but mainly the distance from a satellite dish to the satellite itself. Some infrastructures, such as cruise ships, strongly rely on satellite internet and in the same time their applications require reliable data exchange with the shore-side serves. LÄS MER

  4. 23. Precision Closed-Loop Laser Pointing System for the Nanosatellite Optical Downlink Experiment

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Ondrej Čierny; [2017]
    Nyckelord :;

    Sammanfattning : The use of advanced small-satellite platforms has become increasingly more popular in the recent years. Several private companies are investing enormous capital into constellations of small satellites that are designed to provide highly data-intensive global services, such as rapid Earth imaging or fast worldwide Internet access. LÄS MER

  5. 24. The Longest Journey

    Master-uppsats, Kungl. Konsthögskolan

    Författare :Markus Bowie; [2017]
    Nyckelord :post-internet art; conceptual art; contemporary art; fine art photography; google earth; photoshop; text art; satellite imagery; aerial photography; drone photography; bildkonst; konceptkonst; samtidskonst; textkonst; fotografi; måleri; collage; satellitbilder; flygfotografi; drönarbilder;

    Sammanfattning : The Longest Journey is an experimental Master essay which consists of 27 images with accompanying texts. Part of the images are digital photographs and part of them are images created through a special process involving different software tools – mainly Adobe Photoshop and Google Earth. LÄS MER

  7. 25. Developing a web-based system to visualize vegetation trends by a nonlinear regression algorithm

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Yufei Wei; [2016]
    Nyckelord :PolyTrend; nonlinear regression algorithm; vegetation trends; Physical Geography and Ecosystem Analysis; NDVI; Web Development; Django; MATLAB; Python; Earth and Environmental Sciences;

    Sammanfattning : Comparing with traditional linear regression methods that used to monitor vegetation trends, a nonlinear regression algorithm (PolyTrend) developed by Jamali et al. (2014) can provide more accurate information of vegetation trends by fitting a polynomial line with a degree of up to three for ASCII-formed time-series NDVI (Normalized Difference Vegetation Index) dataset of a single pixel. LÄS MER