时变信道下的激光通信系统安全特性评估研究

Safety evaluation of laser communication system in time-varying channels

激光通信系统的信道具有时变性、随机性等特点,当前激光通信系统安全特性评估模型存在错误大、效率低等局限性,为了改善激光通信系统安全特性评估效果,设计了时变信道下的激光通信系统安全特性评估模型。首先分析当前激光通信系统安全特性评估进展,采集激光通信系统安全特性历史数据,然后结合信道的时变性,建立激光通信系统安全特性评估指标体系,最后引入数据挖掘技术对激光通信系统安全特性评估进行建模,并采用具体激光通信系统安全特性评估实验对模型性能进行测试和分析。结果表明,相对其他激光通信系统安全特性评估对照模型,激光通信系统安全特性评估准确性更高,激光通信系统安全特性评估正确率高于90%,而激光通信系统安全特性评估时间的平均值为1. 87秒,具有十分显著的优越性。

The channel of laser communication system has the characteristics of time-varying and randomness. At present,the security characteristic evaluation model of laser communication system has some limitations,such as big error and low efficiency. In order to improve the security characteristic evaluation effect of laser communication system,the security characteristic evaluation model of laser communication system under time-varying channel is designed.Firstly,this paper analyses the current progress of the security characteristic evaluation of laser communication system,collects the historical data of the security characteristic of laser communication system,then establishes the security characteristic evaluation index system of laser communication system based on the time-varying channel. Finally,data mining technology is introduced to model the security characteristic evaluation of laser communication system,and the security characteristic evaluation experiment of a specific laser communication system is carried out. The model performance is tested and analyzed. The results show that,compared with the comparative model of laser communication system security characteristic evaluation,the accuracy of the laser communication system security characteristic evaluation in this paper is higher than 90%,and the average time is 1.87 seconds,which has a very significant advantage.