Beam Constant Bias Shareable Radio Spectrum Method and Low Orbit Communication Satellite System

Abstract

The present invention provides a method for sharing radio spectrum with high-orbit communication satellites operating in near-equatorial orbits, including geosynchronous satellites, and a low-orbit communication satellite system based on beam constant value offset. The method includes: the low-orbit communication satellite The conversion of the constant value bias state of the launch beam is completed in the north and south poles and near the equator. The beam bias direction is opposite before and after each implementation, and the beam bias degree is a fixed constant value; for low-orbit communication satellites near the equator, they are all biased towards the equator ; During the implementation of beam offset conversion near the North Pole and the South Pole, the beams of other low-orbit communication satellites in the other two adjacent orbits on both sides of the current orbit provide services. During the implementation of beam offset switching near the ascending node and the descending node, the adjacent low-orbit communication satellites located on the other side of the ascending node or descending node in the same orbit provide beam coverage services.

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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