Accommodation of feeder-links of non-geostationary satellites for personal communications in frequency bands allocated to the fixed-satellite service

1996 ◽  
Author(s):  
A.G. Reed
Keyword(s):  
Personal Communications ◽  
Frequency Bands ◽  
Geostationary Satellites ◽  
Satellite Service

scholarly journals How Geostar Radiodetermination Technology Minimizes Interference to Radioastronomy

1991 ◽  
Vol 112 ◽  
pp. 201-204
Author(s):  
Martin A. Rothblatt
Keyword(s):  
Radio Astronomy ◽  
Federal Communications Commission ◽  
Time Difference ◽  
Frequency Allocation ◽  
Sharing Rule ◽  
Frequency Bands ◽  
Geostationary Satellites ◽  
The Earth ◽  
Satellite Service

Geostar Radiodetermination Satellite Service (RDSS) measures the position of vehicles on the earth using geostationary satellites and time-difference ranging techniques. One of the RDSS frequency bands overlaps with a radio astronomy frequency allocation. The Federal Communications Commission (FCC) mandated a unique spacetime frequency sharing rule to minimize interference.

THE USE OF NEAR-EARTH ORBITS BY SATELLITE SYSTEMS IN DIFFERENT FREQUENCY BANDS

2021 ◽  
Author(s):  
Н.В. ВАРЛАМОВ ◽  
С.С. УВАРОВ
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Geostationary Orbit ◽  
Frequency Bands ◽  
Satellite Systems ◽  
Elliptical Orbits ◽  
Earth Orbits ◽  
Satellite Service

Выполнен анализ интенсивности использования геостационарной орбиты (ГСО) и негеостационарных орбит (НГСО) современными системами спутниковой связи фиксированной спутниковой службы в Ки-, Ка- и Q/V-диапазонах частот. Исследование охватывает ГСО, а также два наиболее используемых сегмента НГСО с высотой апогея до 1500 км и выше 8000 км. Представлены также результаты исследований для высокоэллиптических орбит (ВЭО). Сделан вывод о дефиците орбитально-частотного ресурса на ГСО и НГСО для рассматриваемых диапазонов частот. The paper analyzes the intensity of the use of geostationary orbit (GSO) and non-geostationary orbits (non-GSO) by modern satellite communication systems of the fixed-satellite service in the Ku-, Ka- and Q/V-bands. The analysis is made for geostationary orbit and two most used segments of non-GSO orbits with apogee altitudes up to 1500 km and above 8000 km. Results for highly inclined elliptical orbits (HEO) are also presented. The analysis results show a shortage of orbital and frequency resources in GSOs and non-GSOs for the considered frequency bands.

World Radio Conference WRC-2000

2001 ◽  
Vol 196 ◽  
pp. 229-235
Author(s):  
Klaus Ruf
Keyword(s):  
Radio Astronomy ◽  
Direct Impact ◽  
Frequency Bands ◽  
The Earth ◽  
The World ◽  
The Status ◽  
Satellite Service

The World Radio Conference 2000 must be considered the most important one for radio astronomy since WARC-79. The conference agenda contains about 30 topics of substance, and more than 10 of these have direct impact on radio astronomy frequency allocations. From the perspective of radio astronomy the most important items are: “Allocation of Frequency Bands above 71 GHz to the Earth-Exploration Satellite Service (passive) and Radio Astronomy Service” and the agenda items dealing with Recommendation 66 (Unwanted Emissions). A review of the status of preparations is given.

Coexistence of the Broadcasting Satellite Service With Fixed Service Systems in Frequency Bands Above 10 GHz

2006 ◽  
Vol 52 (1) ◽  
pp. 100-107 ◽  
Author(s):  
A.D. Panagopoulos ◽  
P.-D.M. Arapoglou ◽  
G.E. Chatzarakis ◽  
J.D. Kanellopoulos ◽  
P.G. Cottis
Keyword(s):  
Service Systems ◽  
Frequency Bands ◽  
Satellite Service
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