Gateway station site selection method and system of broadband low-orbit satellite communication system

A technology of satellite communication system and gateway station, which is applied in the field of satellite communication, and can solve problems such as irrationality, failure to consider the upper limit of single-satellite capacity, distribution of global business volume, and uneven distribution of business demand

Active Publication Date: 2021-07-06
SUN YAT SEN UNIV
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Problems solved by technology

Due to the limited computing power and storage capacity of on-board equipment, and the uneven distribution of business requirements caused by regional differences, global population distribution, economic development and oth

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  • Gateway station site selection method and system of broadband low-orbit satellite communication system
  • Gateway station site selection method and system of broadband low-orbit satellite communication system
  • Gateway station site selection method and system of broadband low-orbit satellite communication system

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Embodiment Construction

[0057] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For the step numbers in the following embodiments, it is only set for the convenience of illustration and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art sexual adjustment.

[0058] The low-orbit satellite network related to the site selection of gateway stations provided by the present invention is mainly composed of satellites, gateway stations and user terminals, such as figure 2 As shown, the user link is used for communication between the mobile user and the satellite, the feeder link is used for the communication between the gateway station and the satellite, and each satellite realizes inter-satellite communication through a laser link. The gateway station can not only communicate...

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Abstract

The invention discloses a gateway station site selection method and system for a broadband low-orbit satellite communication system. The method comprises the following steps: generating a satellite network static topology; constructing a global user location service model to obtain the service volume borne by all satellites; establishing a target function by taking minimization of communication time delay and maximization of data transmission rate as targets and taking a gateway station site selection range, a gateway station receiver threshold and a single-satellite capacity upper limit as constraint conditions; calculating the target function fitness of a group of candidate gateway stations; and optimizing the site selection of the gateway station by adopting a genetic algorithm. The system comprises a satellite, a gateway station and a user terminal. According to the method, the influence of single-satellite capacity limitation and global service distribution on the site selection of the gateway station is considered, and an effective reference method is provided for the site selection of the gateway station of the broadband low-orbit satellite communication system. The gateway station site selection method and system for the broadband low-orbit satellite communication system can be widely applied to the technical field of satellite communication.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a gateway site selection method and system for a broadband low-orbit satellite communication system. Background technique [0002] The quality of the location of the gateway station directly determines the information transmission capability of the satellite communication system. At present, there are two basic methods for selecting the location of the gateway station of the broadband low-orbit satellite communication system: from the engineering point of view, combined with local climate conditions, electromagnetic Site selection based on the impact of the environment and natural disasters; from a system perspective, the location and number of gateway stations are determined according to the satellite coverage distribution to achieve the best communication rate at low cost. Due to the limited computing power and storage capacity of on-board equipment, and issues ...

Claims

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/1851H04B7/18519
Inventor 陈翔熊聪彭福洲邱继云
Owner SUN YAT SEN UNIV
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