Performance monitoring method and device for geosynchronous orbit satellite communication system

Abstract

The invention provides a performance monitoring method and device for a geosynchronous orbit satellite communication system. The method comprises the following steps: acquiring a constellation diagram of a to-be-monitored signal obtained by a receiving end of the geosynchronous orbit satellite communication system; and inputting the constellation diagram into a trained convolutional neural network model, and outputting a performance monitoring result of a communication system corresponding to the to-be-monitored signal, the performance monitoring result comprising a modulation format of a received signal and a physical damage type of the communication system. According to the method, a constellation diagram of a to-be-monitored signal received by a receiving end of a satellite communication system is classified through a trained convolutional neural network model, and a performance monitoring result including a system modulation format and a physical damage type is identified, so that the modulation type and the physical damage type of the communication system can be judged in time, and timely maintenance of equipment or devices in the transmission system is facilitated, or further signal equalization or compensation for the transmission signal is facilitated.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a performance monitoring method and device of a geosynchronous orbit satellite communication system. Background technique [0002] A satellite in geosynchronous orbit refers to a satellite with an orbital altitude of about 36,000 km that is relatively stationary with the earth. The geosynchronous orbit satellite communication system refers to a system that uses radio signals for communication. Geosynchronous orbit satellite communication has attracted widespread attention due to its advantages such as long communication distance, large communication capacity, wide coverage, and high safety and reliability. [0003] For satellite communication systems in geosynchronous orbit, system performance largely depends on the degree of link impairment. In geosynchronous orbit satellite communication systems, link damage mainly comes from two aspects: (1) Due to the expansio...

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Problems solved by technology

[0004] In order to prevent these damages from affecting the stable operation of the satellite communication system, traditional satellite communication system performance monitoring is usually limited by the method of threshold

This traditional monitoring method has the following main defects: (1) For a communication system with an unknown modulation format, the modulation format cannot be accurately judged, resulting in a waste of resources; (2) Once the system fails, a large number of manual interventions, professional human resources and time; (3) the root cause of system failure cannot be determined; (4) for some soft failures (physical damage to the system) that may often occur in geosynchronous orbit satellite communication systems, this conventional method generally cannot easily detected

This not only greatly increases the operating cost of the geosynchronous orbit satellite communication system, but also causes a waste of network and human resources.

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