| 摘要: |
| 卫星量子通信是建立全球量子通信网络的最佳选择之一。针对采用偏振编码的卫星量子通信中的偏振保持问题，研究了大气散射和卫星与地面站间相对运动等因素对量子偏振态相位和对准的影响以及相位延迟和对准误差对系统量子误码率的影响，分析了背景噪声和系统硬件噪声对通信产生的影响以及单光子通信过程中可能受到的光子分离攻击干扰，为量子信号认知设计提供借鉴意义。 |
| 关键词: 量子通信 卫星通信 偏振误差 相位延迟 背景噪声 分离攻击干扰 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目(61302153)；航空基金资助项目(20140196003) ；航天科技创新基金项目(CASC040203) |
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| Analysis of noise and interference to single photon satellite quantum communication |
| LI Tiefei,YANG Feng,LI Wei,CUI Shumin |
| () |
| Abstract: |
| Satellite quantum communication is one of the best choices for building a global quantum network. In view of the polarization maintaining problem in satellite quantum communication which uses polarization encoding,the impact of atmospheric scattering and relative movement between satellite and ground station on the photon polarization states’ phase and alignment and the influence of alignment error and phase delay on quantum bit error rate of the system is researched.The influence of background noise and hardware on the quantum communication and the photon-number-splitting attacks to the single photon in quantum communication are analyzed.Research in this paper has important significance to quantum signal’s cognitive design. |
| Key words: quantum communication satellite communication polarization error phase delay background noise photon-number-splitting attacks |
《电讯技术》编辑部 