The study on the microwave propagation impairments in earth-satellite link
Үйл явц: Бичиж хэвлүүлсэн
Бүтээлийн товч тайлбар:
exploitation of satellites for communication purposes has increased
continuously over the last decades in order to satisfy the growing demand for
long-distance communications. As the C-band (4/6 GHz) is already congested, and
the Ku-band (12/14 GHz) is filling up rapidly, the current interest focused on
the possible utilization of higher bands. Some systems are already designed to
operate in the Ka-band (20/40 GHz).
adoption of the Ka and Ku bands for satellite links has many advantages. It can
provide plenty of bandwidth, which facilitates the coordination of satellite
services and the introduction of new communication services. Furthermore,
antennas operating in these bands have a higher directivity than antennas of
equal size operating in lower frequency bands, which enables more satellites to
be positioned closer together, since interference between adjacent satellites
can be reduced.
band satellite communication service introduced in Mongolia in 1971, and then
established Asiasat and Intelsat earth stations. Nowadays, satellite based
international telephone, data, television, radio broadcasting and VSAT services
have been penetrated in public and private sector of Mongolia. In the near future, Ku
band will be used for the satellite broadcasting system of Mongolia.
The aim of the
research is to investigate Ku band satellite broadcasting system of Mongolia.
meteorological parameters which have direct effect on the Ku band microwave propagation in
absorption and rain attenuation at Ku band and required power margin in the territory of Mongolia.
of transmission standard of satellite broadcasting
configuration of Mongolian satellite broadcasting system
of transmit earth station and remote receive station equipments
budget of Ku band satellite broadcasting system
of required investment of satellite
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