Sökning: "Low Earth Orbit LEO"

Visar resultat 21 - 22 av 22 uppsatser innehållade orden Low Earth Orbit LEO.

1. 21. Antenna for GNSS Reception in GEO-Orbit

   Uppsats för yrkesexamina på avancerad nivå, KTH/Rymd- och plasmafysik

   Författare :Patrick Magnusson; [2014]
   Nyckelord :GNSS antenna; GNSS; GPS; antenna; GEO; helical antenna; circular array; conical;

   Sammanfattning : There are a number of global navigation satellite systems (GNSS), in use or planed, which are used for navigation on earth but also for autonomous navigation of satellites in low earth orbit (LEO). It would be desirable to also have autonomous navigation in geosynchronous earth orbit (GEO) to reduce costs and make it possible to get higher accuracy on the position of the satellite. LÄS MER

3. 22. Implementation of Full Spectrum Inversion Method to Retrieve Bending Angle based on Simulated Data

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Arkadiusz Lebkowski; Krzysztof Nadolny; [2013]
   Nyckelord :atmosphere; bending angle; Full Spectrum Inversion; GPS; LEO; radio occultation; satellites; weather forecasting;

   Sammanfattning : This master thesis was done in cooperation with RUAG Space AB. Currently RUAG is working on designing the next generation instrument using Radio Occultation (RO) for climate monitoring and atmospheric sounding. RO is a method used to measure the temperature, pressure and humidity of the Earth's atmosphere. LÄS MER