量子光学学报, 2014, 20 (3): 192, 网络出版: 2014-09-01  

基于旋光-双反射结构的星载量子密钥分发精跟踪系统控制算法研究

Fine Tracking Control Algorithm of Polarimetry-double Reflection Structure in the Satellite Based Quantum Key Distribution Terminal
作者单位
1 空军电磁频谱管理中心, 北京 100843
2 空军工程大学防空反导学院, 陕西 西安 710067
3 西安计量技术研究院, 陕西 西安 710053
摘要
研究了旋光-双反射结构作为星载量子密钥分发终端的精跟踪系统时的反射光偏振态保持情况, 分析了反射光面(由入射光和反射光适量确定)不一致导致的反射光子偏振态变化情况, 并计算了此时可能引入的量子误码率。根据双反射结构的特点, 给出了两个反射镜法线方向与入射光、出射光矢量之间的关系, 并据此提出了旋光-双反射结构的卫星精跟踪系统控制算法。
Abstract
The polarization of reflected light was studied when the polarimetry-double reflection structure was used as a fine tracking system in the satellite based quantum key distribution terminal.The polarization variation of reflected light caused by the inconformity of two light plans (which was confirmed by incident light and reflected light) was analyzed.The quantum bit error rate was calculated.Base on the characteristics of this reflection structure, the relationship between the normal directions of two mirrors and the vectors of incident light and reflected light was given.The control algorithm was presented when this reflection structure was used as a fine tracking mirror.

张洪革, 郝晨露, 陈晨. 基于旋光-双反射结构的星载量子密钥分发精跟踪系统控制算法研究[J]. 量子光学学报, 2014, 20(3): 192. ZHANG Hong-ge, HAO Chen-lu, CHEN Chen. Fine Tracking Control Algorithm of Polarimetry-double Reflection Structure in the Satellite Based Quantum Key Distribution Terminal[J]. Acta Sinica Quantum Optica, 2014, 20(3): 192.

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