Method for sharing radio frequency spectrum based on beam constant offsetand low-orbit communication satellite system

Abstract

The invention relates to a method for sharing a radio frequency spectrum with a high-orbit communication satellite running in a near-equatorial orbit including an earth synchronous satellite based onbeam constant offset and a low-orbit communication satellite system. The method comprises the steps that low -orbit communication satellites complete conversion of a transmitting beam constant offsetstate near the North-South poles and the equator, the beam offset directions are opposite before and after each implementation, and the beam offset degree is a fixed constant; the low-orbit communication satellites close to the equator all deflect towards the equator; and during the beam offset conversion near the North and South poles, services are provided by the beams of other low-orbit communication satellites in two other orbits adjacent to each other on both sides of the current orbit. During implementation of beam offset conversion near the ascending node and the descending node, beam coverage services are provided by adjacent low-orbit communication satellites located on the other side of the ascending node or the descending node in the same orbit.

Description

technical field [0001] The present invention relates to a method and a low-orbit communication satellite system based on a beam constant value bias that can share a radio frequency spectrum (that is, a beam constant value bias shared radio frequency spectrum method and a low-orbit communication satellite system), belonging to the technical field of earth orbit communication satellites . Background technique [0002] Already one of the important applications of space technology is communication satellites, which receive and transmit radio signals from the Earth's surface. Radio spectrum has become a very valuable commodity as satellite communications technology advances and demand explodes. Specific ranges of radio spectrum can be auctioned for tens of billions of dollars. [0003] A geosynchronous satellite is a typical communication satellite that orbits the Earth in a plane intersecting the Earth's equator ("equatorial plane"), at a distance of about 36,000 km (about six...

AI Technical Summary

Problems solved by technology

The above problems are the inherent deficiencies of the patent "Communication Satellite System CN107210805A with Reduced Interference" based on the progressive bias scheme

[0015] In addition, in the case of using the attitude bias to realize the beam progressive bias, the orbit correction in the tangential direction of the orbit plane can only be implemented during the non-progressive bias period, and there are certain restrictions on the arc range of the orbit correction

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