engleski

Rigorous analysis on performanceof LEO satellite ground station in urban environment

Since two decades the microsatellites in Low Earth Orbits (LEO) are in use. Low Earth Orbit satellites are used for public and massive communication and for scientific purposes, also. Low Earth Orbits vary with the type of satellites and their primarily purposes. Low Earth Orbit scientific satellites have very wide application, including Earth’ s surveillance and astronomy applications. These satellites provide opportunity for investigations for which existing techniques are either difficult or impossible to be applied. Thus, it is to be expected that such missions in the near future will be more developed especially in the fields where similar experiments can not be done by means on the Earth. So, also the ground stations have to be established in order to communicate with such satellites. The quality of communication depends on the performance of the satellite ground station, also. Before the implementation of the ground station the analyses related to environmental factors have to be considered, especially in urban areas. Rain effects, intermodulation products disturbance, contact time duration at low elevation, are few aspects which are considered in this work related to final decision on design of the ground station. The performance measurement of the ground station based on Sun flux density is described as an experimental method which provides opportunity to check the performance of the ground station.

LEO; satellite; ground station; performance; intermodulation; duration

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