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Frequency spectrum sharing simulation time parameter design method for NGSO constellation system

A spectrum sharing time and parameter design technology, applied in the field of satellite constellation interference analysis, can solve the lack of demonstration description, lack of simulation time parameters constellation system beam and air interface characteristics to establish a corresponding connection, lack of detailed demonstration and quantification of constellation system compatible coexistence Analyze calculation and other issues to achieve the effect of improving efficiency and reducing the amount of calculation

Active Publication Date: 2021-07-16
NAT SPACE SCI CENT CAS
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Problems solved by technology

At present, there is no record of quantitative research and calculation of the influence of simulation time parameter selection in interference analysis, and there is no corresponding relationship between the selection of simulation time parameters and the beam and air interface characteristics of the constellation system, and there is a lack of detailed information. Argument description
However, the method for determining the time parameters of interference simulation proposed in the International Telecommunication Union (ITU) recommendation ITU-R S.1503-3 is only for the scenario where the NGSO satellite system and the GSO system spectrum coexist. method, lack of detailed demonstration and quantitative analysis and calculation of compatible coexistence between constellation systems

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  • Frequency spectrum sharing simulation time parameter design method for NGSO constellation system
  • Frequency spectrum sharing simulation time parameter design method for NGSO constellation system
  • Frequency spectrum sharing simulation time parameter design method for NGSO constellation system

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Embodiment Construction

[0125] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0126] The present invention aims at co-channel interference between non-geostationary satellite orbit (None Geostationary Satellite Orbit, NGSO) satellite constellation systems, constructs a global interference scenario of the uplink and downlink of the constellation system, based on the mathematical analysis model based on the interference link building conditions Carry out the interference calculation of the uplink and downlink of the co-located earth stations of the constellation system. In the simulation analysis of constellation system interference, two angles are designed based on time step and duration, and the mathematical correlation between the selection of simulation time parameters and the space and beam characteristics of the constellation system is studied, and the satellite and earth station layout in the constellation system ...

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Abstract

The invention discloses a spectrum sharing time parameter design method for an NGSO constellation system. The method comprises the following steps: 1) constructing an interference scene of the NGSO constellation system, comprising an interfering NGSO constellation system and an interfered NGSO constellation system, wherein the interfering NGSO constellation system comprises a plurality of interfering satellites, and the interfered NGSO constellation system comprises a plurality of interfered satellites; 2) according to the interference scene, calculating the time step length of a downlink, the sampling times of an interfered satellite receiving antenna beam main lobe area in the downlink and the geocentric angle of the interfered satellite receiving antenna beam main lobe area in the downlink when passing through an interference earth station; 3) according to the interference scene, calculating the time step length of a uplink, the sampling times of the interfered satellite receiving antenna beam main lobe area in the uplink and the geocentric angle of the interfered satellite receiving antenna beam main lobe area of the uplink when passing through the interference earth station; and 4) calculating the total time length and the total step number of NGSO constellation system orbit operation simulation during interference analysis.

Description

technical field [0001] The invention relates to the field of satellite constellation interference analysis, in particular to a method for designing time parameters of NGSO constellation system spectrum sharing simulation time. Background technique [0002] In recent years, as the occupation of geostationary orbit resources tends to be saturated, countries around the world have launched non-geostationary orbit (None Geostationary Orbit, NGSO) satellite constellation system plans one after another. For example, StarLink, OneWeb, Telesat constellation system and my country's "Swan Goose", "Hongyun" and major projects of space-earth integrated information network. The implementation of a series of large-scale satellite constellation plans has increased the demand for space spectrum and orbital resources, further increasing the difficulty of satellite-ground and inter-satellite link communication, frequency measurement and control, and data transmission. The compatibility and sh...

Claims

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/18519
Inventor 高翔姚秀娟董苏慧智佳闫毅王静牟娇
Owner NAT SPACE SCI CENT CAS
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