A large-scale satellite network construction method based on elliptical satellite coverage

Abstract

The invention discloses a large-scale satellite network construction method based on elliptical satellite coverage, including: constructing low-orbit and high / middle-orbit satellite network environments; defining optimal controller layout; constructing high / middle-orbit satellites to low-orbit satellites The elliptical coverage model of the linear control domain shape; the optimal controller layout unit and the optimal low-orbit satellite network topology unit when constructing the linear control domain shape; The basic distance relationship between satellites, the high / medium orbit satellite controllers are placed along the two boundary expansion directions and between the two boundary expansion directions, respectively constructing J>1 and i≠J, J>1 and i=J Optimal controller layout unit and optimal low-orbit satellite network topology unit; geometric expansion of optimal low-orbit satellite network topology unit; calculation of orbital height and coverage angle of high / medium orbit satellites. The invention reduces the complexity of problem modeling and solution, thereby being effectively and quickly applied to actual large-scale satellite network layout and construction.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and in particular relates to a large-scale satellite network construction method based on elliptical satellite coverage. Background technique [0002] The satellite network is considered to be an indispensable part of the future space Internet and 6G satellite-ground fusion network. In order to guarantee the service capability of the satellite network, the emerging satellite network gradually tends to be large-scale and dense, and the single-satellite capability continues to improve, eventually forming a large-scale satellite network with tens of thousands of satellite platforms. However, the fact that the scale of the satellite network continues to grow and ground gateways cannot be deployed globally has brought new challenges to the network configuration design and network management and control of large-scale satellite networks, such as local network congestion and high control...

AI Technical Summary

Problems solved by technology

[0004] However, the above research neither considers the control structure of low-orbit satellites controlled by high / medium orbit satellites equipped with controller loads, nor does it consider the application scenarios of large-scale satellite networks

In terms of optimal controller deployment, the above studies did not consider the impact of the actual high / medium orbit satellite coverage on the optimal controller deployment, and the existing optimal controller deployment methods have a high complexity of solution, and often with the In addition, this type of method usually does not have a closed-form solution. Once the network parameters change, iterative calculations are required. It is difficult for existing research to be effectively and quickly applied to the actual large-scale satellite network configuration. and controller layout design

Images