灰霾粒子与水云粒子不同混合方式对量子卫星通信性能影响

发布时间：2018-01-13 04:07

  本文关键词：灰霾粒子与水云粒子不同混合方式对量子卫星通信性能影响　出处：《光子学报》2017年07期 　论文类型：期刊论文

  更多相关文章： 量子通信 消光系数 Core-shell信道衰减模型 混合气溶胶粒子 粒径比 信道容量 保真度 误码率

【摘要】：为了研究混合粒子的不同混合方式对星地量子卫星通信的影响,根据灰霾粒子与水云粒子的谱分布函数,以及不同混合方式下的消光系数,提出了外混合方式中星地量子信道衰减的计算关系,建立了内混合方式中的Core-shell信道衰减模型;分析了在不同混合方式下,混合粒子的粒径比与信道平均保真度、信道误码率之间的定量关系.仿真结果表明,当混合粒子的粒径比分别为0.2和0.8时,外混合粒子对应信道容量、信道平均保真度、信道误码率分别为0.39和0.27,0.8和0.8,0.003和0.009;内混合粒子对应信道容量、信道平均保真度、信道误码率分别为0.8和0.21,0.94和0.81,0.018和0.021.由此可见,灰霾粒子和水云粒子的不同混合方式对量子卫星通信性能的影响有显著差别.因此,在实际的量子卫星通信系统中,应根据混合粒子的不同混合方式自适应调整系统的各项参量,以提高星地量子通信链路的可靠性.
[Abstract]:In order to study the influence of different mixing modes of mixed particles on satellite communication, according to the spectral distribution function of haze particles and water cloud particles, and the extinction coefficient of different mixing modes. The calculation relation of the attenuation of the spaceground quantum channel in the external mixing mode is presented, and the attenuation model of the Core-shell channel in the inner mixing mode is established. The quantitative relationship between particle size ratio and channel average fidelity and channel bit error rate in different mixing modes is analyzed. The simulation results show that the particle size ratio is 0.2 and 0.8 respectively. The external mixed particles correspond to the channel capacity, the average channel fidelity and the channel error rate (BER) of 0.39 and 0.270.8,0.88 and 0.009, respectively. The mixing particles correspond to channel capacity, channel average fidelity and channel error rate (BER) of 0.8 and 0.21 / 0.94 and 0.81 / 0. 018 and 0. 021 respectively. The effects of haze particles and water cloud particles on the performance of quantum satellite communication are significantly different, therefore, in the actual quantum satellite communication system. The parameters of the system should be adjusted adaptively according to the different mixing modes of the mixed particles in order to improve the reliability of the space-ground quantum communication link.
【作者单位】： 西安邮电大学通信与信息工程学院;西北工业大学电子信息工程学院;西安电子科技大学综合业务网国家重点实验室;
【基金】：国家自然科学基金(No.61172071) 陕西省自然科学基础研究计划(No.2014JQ8318) 陕西省国际科技合作与交流计划项目(No.2015KW-013) 陕西省教育厅科研计划项目(No.16JK1711)资助~~
【分类号】：O413;TN918
【正文快照】： 1-20010700.39(0.27),0.8(0.8)and 0.003(0.009),respectively;the channel capacity,channel average fidelityand the channel bit error rate of external mixing mode will be 0.8(0.21),0.94(0.81)and 0.018(0.021),respectively.It can be seen that the influence of d，

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