Essays about: "SDR"

Showing result 26 - 30 of 70 essays containing the word SDR.

  1. 26. A feasibility study for a satellite VHF Data Exchange System (VDES)

    University essay from KTH/Rymdteknik

    Author : Julian Grujicic; [2019]
    Keywords : Systems engineering; satellite design; satellite communication; AIS; VDES; LEO; satellite constellation; CubeSat; new space .; Systemteknik; satellitdesign; satellitkommunikation; AIS; VDES; Låg-jordbana; satellitkonstellation; CubeSat .;

    Abstract : Transportation across the globe's oceans increases every year and is expected to keep increasing in the following decades. Consequently, there is a need to establish communication over the horizon through the Automatic Identification System (AIS) and the Very High Frequency (VHF) Data Exchange System (VDES), still in development, to track and communicate with vessels all over the globe regardless of the distance from shore. READ MORE

  3. 27. The Impact of the Difference Signal on the Perceived Loudness of a Piece of Stereo Rock Music : A Comparison Between Headphones and Loudspeakers

    University essay from Luleå tekniska universitet/Institutionen för konst, kommunikation och lärande

    Author : Joel Hansson Lagerberg; [2019]
    Keywords : Loudness; BS.1770; Headphones; Loudspeakers; Stereo; Perception;

    Abstract : The purpose of this study was to evaluate how the BS.1770 Loudness Standard is affected by the amount of difference signal present in the signal being measured, and if this affection is different between the two playback systems Headphones and Loudspeakers. The study was restricted to rock music productions in a stereo format. READ MORE

  4. 28. Spoofing Mitigation Using Multiple GNSS-Receivers

    University essay from Linköpings universitet/Reglerteknik

    Author : Niklas Stenberg; [2019]
    Keywords : GNSS; spoofing; mitigation;

    Abstract : Global Navigation Satellite Systems (GNSS) are used in a multitude of civilian as well as security related applications. GNSS-receivers are vulnerable to different types of spoofing attacks where the receiver is ``tricked'' to provide false position and time estimates. READ MORE

  5. 29. Channel-Based Intrusion Detection at the LTE Physical Layer

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

    Author : Bjarki Mar Benediktsson; [2019]
    Keywords : ;

    Abstract : Long Term Evolution (LTE) is the most widespread cellular technology around the globe. An LTE device must communicate with base stations without encryption and authentication before a connection to a network is established and security steps executed. READ MORE

  6. 30. IOT CONNECTIVITY WITH EDGE COMPUTING

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Maximilian Stiefel; [2018]
    Keywords : ;

    Abstract : Billions of Internet of Things (IoT) devices will be connected in the next decades. Most devices are for Massive Machine Type Communication (MMTC) applications. This requires the IoT infrastructure to be extremely efficient and scalable (like today’s Internet) to support more and more devices connected to the network over time. READ MORE