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Non-Geostationary Satellite Interference in Geostationary Satellite Systems
The rapid deployment of ultra-dense non-geostationary satellite orbit (NGSO) constellations, particularly in low Earth orbit (LEO), has introduced significant challenges for spectrum sharing and interference management with existing geostationary satellite orbit (GSO) systems.
JALALI, Mahdis
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Robotics for geostationary satellite servicing
Robotics and Autonomous Systems, 1998The geostationary orbit as well as the satellite systems stationed there for telecommunication, TV broadcasting, weather forecasting, etc. have high commercial and strategic value. To safeguard the huge capital investments and the usability of the orbit itself, it will soon be indispensable to have adequate remote intervention means for the servicing ...
Gianfranco Visentin, D. L. Brown
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2019 28th Wireless and Optical Communications Conference (WOCC), 2019
This paper focused on satellite communication on compatibility study between non-geostationary system and the geostationary system in the fixed-satellite service. Nowadays, both geostationary and non-geostationary fixed-satellite service satellite systems may operate in the frequency bands 37.5-39.5 GHz (space-to-Earth), 39.5-42.5 GHz (space-to-Earth),
Jianxin Li, Meng Li, Wei Li 0048
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This paper focused on satellite communication on compatibility study between non-geostationary system and the geostationary system in the fixed-satellite service. Nowadays, both geostationary and non-geostationary fixed-satellite service satellite systems may operate in the frequency bands 37.5-39.5 GHz (space-to-Earth), 39.5-42.5 GHz (space-to-Earth),
Jianxin Li, Meng Li, Wei Li 0048
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Autonomous Stationkeeping of Geostationary Satellites
IFAC Proceedings Volumes, 1979Abstract A concept for enabling geostationary satellites to determine and control their orbital position is discussed. The concept is simple and can be implemented on either a microprocessor or on-board computer. It uses the Earth sensor and clock normally carried and adds a star sensor and wide field-of-view sun sensors to enable the orbit to be ...
B. Vendy, D. Plummer
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Positioning in Multibeam Geostationary Satellite Networks
2009 IEEE International Conference on Communications, 2009The problem of local positioning for geostatic satellite networks operating at frequencies above 10GHz is studied in the present paper. Based on angle of arrival (AOA) and received signal strength (RSS) techniques, a simple yet effective algorithm is provided to estimate the position of a satellite terminal (ST).
Dionysia K. Petraki +3 more
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Geostationary Satellite Orbital Geometry
IEEE Transactions on Communications, 1972In the design of communication systems using geostationary satellites, it is essential to know the relationships among the slant range, elevation angle, central angle, and nadir angle.
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A network architecture for a geostationary communication satellite
IEEE Communications Magazine, 1994An M-VSAT communication system envisioned by NASA would provide low data rate, direct-to-the-user communications services for interactive data, voice, facsimile, and video conferencing. Such a system would enhance current communications services and enable new services. >
William D. Ivancic +2 more
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GeoSTAR - a microwave sounder for geostationary satellites
IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004, 2004Geo STAR represents a new approach to microwave atmospheric sounding that is now under development. It has capabilities similar to sensors currently operating on low earth orbiting weather satellites but is intended for deployment in geostationary orbit - where it will complement future infrared sounders and enable all-weather temperature and humidity ...
Lambrigtsen, Bjorn +5 more
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2010 2nd International Conference on Information Technology Convergence and Services, 2010
In this paper, interference effect given from nongeostationary orbit link into geostationary orbit link is analyzed by BER performance. To analyze the interference effect with the angle between satellites, the angular separation is changed from 1° to 8°, and the number of the satellite is also changed from 1 to 4 for analyzing it. From the results, the
Chul-Sun Park +3 more
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In this paper, interference effect given from nongeostationary orbit link into geostationary orbit link is analyzed by BER performance. To analyze the interference effect with the angle between satellites, the angular separation is changed from 1° to 8°, and the number of the satellite is also changed from 1 to 4 for analyzing it. From the results, the
Chul-Sun Park +3 more
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Positioning of Geostationary Satellite by Radio Interferometry
IEEE Transactions on Aerospace and Electronic Systems, 2019There are several perturbations that force the satellite orbit to deviate from the elliptical form. To cope with these perturbations, station keeping is applied. For accurate station keeping, determination of the true satellite orbit is necessary. Radio interferometry is one of the techniques used for determining azimuth and elevation look angles of a ...
Mohammad Sadeghi +2 more
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