Method and device for suppressing internal frequency interference in low-orbit constellation system

A low-orbit constellation and frequency interference technology, applied in the field of low-orbit satellite communications, can solve the problems of large sum of interference and affecting the communication quality of earth stations, and achieve the effect of suppressing internal frequency interference

Active Publication Date: 2022-03-04
航天科工空间工程发展有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the earth station communicates with a certain satellite, the sum of the interference it receives from other adjacent satellites in the constellation system is increasing, which may affect the communication quality of the earth station

Method used

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  • Method and device for suppressing internal frequency interference in low-orbit constellation system
  • Method and device for suppressing internal frequency interference in low-orbit constellation system
  • Method and device for suppressing internal frequency interference in low-orbit constellation system

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no. 1 example 1

[0033] figure 1 It is a schematic flow chart of a low-orbit constellation system internal frequency interference suppression method according to the first embodiment of the present invention, as shown in figure 1 As shown, the method includes the following four steps.

[0034] Step S101: Calculate the first right ascension of the intersection point between the edge of the first satellite beam and the surface of the earth.

[0035] It should be noted that the embodiment of the present invention is applicable to the situation that the constellation system includes at least three orbital planes. Select any satellite in any one of the at least three orbital planes as the first satellite. Since the first satellite can be any satellite in the constellation, when calculating beam intersection with other satellites, you can either Calculated from the left edge of the first satellite beam, may also be calculated from the right edge of the first satellite beam. If the left edge calcu...

Embodiment 2

[0084] The embodiment of the present invention provides a low-orbit constellation system internal frequency interference suppression device, which is mainly used to implement the low-orbit constellation system internal frequency interference suppression method provided in the above-mentioned content of the embodiment of the present invention. The following is the embodiment of the present invention. The internal frequency interference suppression device of the low-orbit constellation system will be introduced in detail.

[0085] Figure 6 It is a schematic structural diagram of a low-orbit constellation system internal frequency interference suppression device according to the second embodiment of the present invention. Such as Figure 6 As shown, the low-orbit constellation system internal frequency interference suppression device 200 includes the following modules.

[0086] The first intersection point calculation module 201 is used to calculate the first right ascension o...

Embodiment 3

[0091] The embodiment of the present invention also provides a computing device. Such as Figure 7 As shown, the low-orbit constellation system internal frequency interference suppression computing device 300 of this embodiment includes: a processor 301 , a memory 302 , and a program stored in the memory 302 and executable on the processor 301 . When the processor 301 executes the program, it realizes the steps in the embodiments of the above-mentioned various low-orbit constellation system internal frequency interference suppression methods, for example figure 1 Steps S101, S102, S103 and S104 are shown. Alternatively, when the processor 301 executes the program, the functions of the modules in the above-mentioned device embodiments are realized, for example Figure 6 The module in the LEO constellation system realizes the internal frequency interference suppression device.

[0092]Exemplarily, the program can be divided into one or more modules, and the one or more module...

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Abstract

The invention discloses a method for suppressing internal frequency interference of a low-orbit constellation system. The low-orbit constellation system includes satellites running on at least three orbital planes, wherein each orbital plane includes at least one satellite, including: calculating the first satellite The first right ascension of the intersection point of the beam edge and the earth's surface, where the first satellite is any satellite in any one of the at least three orbital planes; calculate the second right ascension of the intersection point of the beam edge of the second satellite and the earth's surface , where the second satellite is a satellite separated by two orbital plane distances from the first satellite, and the second satellite has the same latitude argument as the first satellite; calculate the same latitude argument u of the first right ascension and the second right ascension c , according to the calculated latitude argument u c Determine the satellite beam shutdown range. Compared with the prior art, the technical solution proposed by the present invention can effectively suppress the internal frequency interference of the low-orbit constellation system on the premise of realizing the full coverage of the ground beam by the constellation system in the high-latitude area.

Description

technical field [0001] The invention relates to the field of low-orbit satellite communication, in particular to a method and device for suppressing internal frequency interference of a low-orbit constellation system. Background technique [0002] The geosynchronous orbit communication satellite system has strong technical accumulation and has established mature market services. In theory, three GSO satellites can achieve signal coverage within 70° north and south latitudes. On the other hand, the geosynchronous orbit communication satellite system also has obvious disadvantages, including long communication distance, large communication delay, low communication angle in high latitude areas, which makes communication easy to be blocked, the existence of south (north) mountain effect, and the difficulty of launching satellites into orbit. High cost and high risk. [0003] Compared with the geostationary orbit communication satellite system, the main advantages of the low-orb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04B7/155
CPCH04B7/18519H04B7/18513H04B7/15585
Inventor 赵书阁贺泉向开恒高利春周洪刚
Owner 航天科工空间工程发展有限公司
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