卫星通信中的诱骗态量子密钥分发误码率分析  

Analysis of Bit Error Rate in Decoy-State Quantum Key Distribution of Satellite Communication

作　　者：李宏欣[1,2] 贺炎 张书轶 韩宇 马延周 LI Hongxin;HE Yan;ZHANG Shuyi;HAN Yu;Ma Yanzhou(Information Engineering University,Luoyang 471003,China;State Key Laboratory of Cryptology,Beijing 100878,China;Unit 61726,Wuhan 430073,China)

机构地区：[1]信息工程大学洛阳校区,河南洛阳471003 [2]密码科学技术国家重点实验室,北京100878 [3]61726部队,湖北武汉430073

出　　处：《信息工程大学学报》2019年第4期390-396,共7页Journal of Information Engineering University

基　　金：国家自然科学基金资助项目(U1204602);河南省科技攻关计划项目(2018377)。

摘　　要：针对卫星通信中的诱骗态量子密钥分发(Quantum Key Distribution,QKD)误码率问题,改进误码率计算模型,模拟大气湍流因子和天顶角对误码率的影响情况。以“墨子号”卫星在北京兴隆站和新疆乌鲁木齐南山站之间进行的诱骗态QKD实验为研究对象,分析北京和乌鲁木齐两地的实际观测数据,计算得到星地诱骗态QKD误码率的逐日变化趋势。分析若干个地面站的相关数据,论证了在拉萨建立地面站较之上述两地可显著降低星地诱骗态QKD误码率。To solve the problem of decoy-state QKD bit error rate of satellite communication,this paper improves the calculating model of bit error rate and simulates the influence of the atmospheric turbulence and zenith angle on bit error rate.To study the decoy-state QKD experiment between Xinglong station in Beijing and Urumqi Nanshan station in Xinjiang,this paper achieves the daily trend of bit error rate in satellite-earth decoy-state QKD by analysing the daily mean atmospheric turbulence intensity of Beijing and Urumqi.Meanwhile,this paper contrasts the relevant data of several stations and demonstrates that establishing a ground station in Lhasa can significantly reduce the bit error rate in satellite-earth decoy-state QKD.

关 键 词：卫星通信 诱骗态QKD 误码率 大气湍流 天顶角 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]