本文關(guān)鍵詞：灰霾粒子與水云粒子不同混合方式對量子衛(wèi)星通信性能影響　出處：《光子學(xué)報》2017年07期 　論文類型：期刊論文

  更多相關(guān)文章： 量子通信 消光系數(shù) Core-shell信道衰減模型 混合氣溶膠粒子 粒徑比 信道容量 保真度 誤碼率

【摘要】：為了研究混合粒子的不同混合方式對星地量子衛(wèi)星通信的影響,根據(jù)灰霾粒子與水云粒子的譜分布函數(shù),以及不同混合方式下的消光系數(shù),提出了外混合方式中星地量子信道衰減的計算關(guān)系,建立了內(nèi)混合方式中的Core-shell信道衰減模型;分析了在不同混合方式下,混合粒子的粒徑比與信道平均保真度、信道誤碼率之間的定量關(guān)系.仿真結(jié)果表明,當(dāng)混合粒子的粒徑比分別為0.2和0.8時,外混合粒子對應(yīng)信道容量、信道平均保真度、信道誤碼率分別為0.39和0.27,0.8和0.8,0.003和0.009;內(nèi)混合粒子對應(yīng)信道容量、信道平均保真度、信道誤碼率分別為0.8和0.21,0.94和0.81,0.018和0.021.由此可見,灰霾粒子和水云粒子的不同混合方式對量子衛(wèi)星通信性能的影響有顯著差別.因此,在實際的量子衛(wèi)星通信系統(tǒng)中,應(yīng)根據(jù)混合粒子的不同混合方式自適應(yīng)調(diào)整系統(tǒng)的各項參量,以提高星地量子通信鏈路的可靠性.
[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.
【作者單位】： 西安郵電大學(xué)通信與信息工程學(xué)院;西北工業(yè)大學(xué)電子信息工程學(xué)院;西安電子科技大學(xué)綜合業(yè)務(wù)網(wǎng)國家重點實驗室;
【基金】：國家自然科學(xué)基金(No.61172071) 陜西省自然科學(xué)基礎(chǔ)研究計劃(No.2014JQ8318) 陜西省國際科技合作與交流計劃項目(No.2015KW-013) 陜西省教育廳科研計劃項目(No.16JK1711)資助~~
【分類號】：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，

本文編號：1417369