Multi-gateway beam-hopping synchronization method and system for high-throughput satellites

Abstract

The invention discloses a beam-hopping synchronization method and system for multi-gateway stations oriented to high-throughput satellites. First, the ground gateway station group mainly includes a network control center, a master gateway station and a plurality of slave gateway stations, each gateway station generates service signals and synchronous control signals. Then, the forward link repeater in the beam hopping satellite payload separates the service signal and control signal sent by each gateway station, wherein the service signal is sent to the back-end power amplification link, and the synchronization control signal is sent to the beam hopping controller. For processing, the beam hopping controller analyzes and compares the synchronization control signals of multiple gateway stations, extracts the time error between the slave gateway station and the master gateway station, and at the same time, according to the analyzed beam hopping control instructions, the beam hopping The back-end switch link is controlled. The method has simple beam hopping synchronization process, fast synchronization time, simple and reliable on-board processing, and does not depend on a specific service communication system.

Description

technical field [0001] The invention relates to a multi-gateway beam-hopping synchronization method and system for high-throughput satellites. Background technique [0002] With the development of Internet applications, the global demand for broadband satellite communication services has increased year by year, especially with the deepening application of cloud computing, Internet of Things and 5G technologies, the characteristics of satellite wide-area coverage have gradually emerged. The demand for capacity will grow exponentially, and the types of information services that need to be supported will emerge in an endless stream. In order to cope with this change in demand, satellite communication technology is gradually developing towards a High Throughput Satellite (HTS, High Throughput Satellite) communication system. [0003] "High-throughput satellite" refers to a new type of satellite that can provide several times to dozens of times higher capacity than traditional s...

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Problems solved by technology

[0007] Relevant foreign literature focuses on the advantages of beam hopping and the analysis of the improvement of system capacity, and gives a rough transponder block diagram. There is no detailed study on the beam hopping synchronization scheme between multiple gateways when the HTS system is used.

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