Sökning: "High Altitude Platform Station HAPS"

Hittade 3 uppsatser innehållade orden High Altitude Platform Station HAPS.

1. 1. Antenna Options for High Altitude IMT Base Stations (HIBS) in Cellular Networks

   Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Författare :Harald Magnusson; [2022]
   Nyckelord :High altitude IMT Base Station HIBS ; High Altitude Platform Station HAPS ; Link Feasibility; Coverage Feasibility; Phased Array Antenna; Parabolic Reflector Antenna;

   Sammanfattning : This thesis is the result of a collaboration between Ericsson AB and Luleå University of Technology. A feasibility study has been conducted to investigate antenna options for the HIBS access link. The study contains two parts. Firstly, a link budget investigating the gain required from the antenna. LÄS MER

3. 2. STRATOSHPHERIC CHANNEL MODELLING

   Magister-uppsats, Blekinge Tekniska Högskola/Avdelningen för signalbehandling

   Författare :OLUWASEYI AWONIYI; [2007]
   Nyckelord :AWGN; BER; HAP; DQPSK; QPSK;

   Sammanfattning : 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. LÄS MER

4. 3. Stratospheric Propagation And HAPs Channel Modeling

   Magister-uppsats, Blekinge Tekniska Högskola/Avdelningen för telekommunikationssystem

   Författare :ANDREW AYOOLA OLUSEYI OLADIPO; [2007]
   Nyckelord :HAPs; BER; channel model; stratospheric propagation;

   Sammanfattning : 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. LÄS MER