Essays about: "satellite transponder"

Found 3 essays containing the words satellite transponder.

  1. 1. 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. 2. STRATOSHPHERIC CHANNEL MODELLING

    University essay from Blekinge Tekniska Högskola/Avdelningen för signalbehandling

    Author : OLUWASEYI AWONIYI; [2007]
    Keywords : AWGN; BER; HAP; DQPSK; QPSK;

    Abstract : High Altitude Platform Stations (HAPs) are communication facilities situated at an altitude of 17 to 30 km and at a specified, nominal, fixed point relative to the Earth. They are mostly solar-powered, unmanned, and remotely-operated. READ MORE

  4. 3. Stratospheric Propagation And HAPs Channel Modeling

    University essay from Blekinge Tekniska Högskola/Avdelningen för telekommunikationssystem

    Author : ANDREW AYOOLA OLUSEYI OLADIPO; [2007]
    Keywords : HAPs; BER; channel model; stratospheric propagation;

    Abstract : High Altitude Platform Stations (HAPs) are communication facilities situated at an altitude of 20 to 50 km and at a specified, nominal, fixed point relative to the Earth. They are mostly solar-powered, unmanned, and remotely-operated. READ MORE