Analysis of a Low-Earth Orbit Satellite Downlink Considering Antenna Radiation Patterns and Space Environment in Interference Situations
نویسندگان
چکیده
This paper investigates a low-Earth orbit (LEO) satellite downlink for high-speed data communication in interference situations. A choke ring horn type antenna is used as the transmitting with an isoflux pattern LEO satellite, which has beam coverage of ±51.6° and bore-sight gain 4.4 dBi at 8 GHz. The receiving on ground station parabolic diameter 11.3 m, it half-power width (HPBW) 0.2° maximum 59 jamming-to-signal ratio (J/S) calculated assuming that transmits signals to station, elevation angle source varies from 0° 90° altitude 10 km. Applying characteristics, such HPBWs side lobes, space wave path loss makes possible predict J/S results according location satellite. show necessary consider environment accurately analyze downlink, especially low
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2023
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs15071748