The secrecy capacity of broad-band multi-carrier communication system was studied from an information-theoretic perspective.
将传统多载波窃密(wiretap)信道模型推广到多载波系统,推导了窃密信道可达保密容量的计算公式。
Quantum cryptography and quantum secret communication are two focus in the quantum information research field.
量子密码术和量子保密通信是量子信息领域的两个重要的发展方向。
Study on quantum secure communication based on EPR pairs;
基于EPR纠缠对的量子保密通信技术探讨
However,quantum channel is not a natural secure channel and quantum secure communication theory is not perfect.
近几年的研究表明,量子密钥分发具有可证安全性并且是最可能首先得到应用的量子信息技术之一,但是,量子信道并不是天然的保密信道,量子保密通信体制还不完善。
This paper first describes the status of information security and quantum secure communication,then analyzes the importance of quantum secure communication in data secure transportation,finally,the development trend and application prospect of the quantum secure communication is discussed in detail.
文中对信息安全和量子保密通信的技术现状进行了介绍,对量子保密通信在数据传输安全方面的重要作用进行分析,对量子保密通信发展趋势和应用前景进行了分析和探讨。
It is experimentally verified that this method is effective for controlling polarization in the quantum channel of a quantum cryptography system over a transmission distance of 25 km.
介绍了在全光纤量子保密通信系统的量子信道中利用可转动光纤圈型偏振控制器实现对光纤偏振态的测量和调整。
Thistechnique is called quantum cryptography or quantum key distribution.
这为我们提供了一种主动发现窃听者的方法，即量子保密通信。
Understanding the characteristic of Avalanche Photodiode(APD) quikly to make sure the effective of quantum key distribution.
为了迅速了解雪崩光电二极管(APD)的特性以确保量子保密通信系统的质量,在适当的假设前提下,依据经验公式并借助于Matlab的矩阵运算功能计算吸收渐变电荷倍增分离型雪崩光电二极管(SAGCM APD)的电场分布,然后以此得出电子、空穴倍增系数,最后再利用这些系数及传递函数计算出SAGCM APD的增益-电压特性及频率响应特性,模拟的结果较好地与实验结果一致。
Research on Theory of Quantum Error Correction Codes in Quantum Secure Communications
量子保密通信中的量子纠错码理论研究
Data Collection Technology and the Problem of Information Security is Analyzed in QKD;
量子保密通信数据采集技术与信息安全分析
Research on Single-Photon Quantum Secure Communication and Related Technology
单光子量子保密通信及其相关技术研究
Research of Quantum Cryptographic System and Its Key Techniques;
量子保密通信系统及其关键技术的研究
Security Research of Quantum Key Distribution System Based on Practical Devices;
基于实际器件量子保密通信系统的安全性研究
Generation of Quadripartite Entangled Optical Field and Quantum Key Distribution with Continuous Variables;
连续变量四组份纠缠光场产生和量子保密通信研究
Peltier Cooling Technique for Single-photon Detector at Infrared Wavelengths;
量子保密通信红外单光子探测器的温度控制技术
The Optical Fiber QKD System and Real-Time Phase Compensation Application;
光纤量子保密通信系统及相位变化实时跟踪补偿研究
Principle, communication protocol of quantum key distribution and its applications;
量子密钥分配原理、通信协议及应用
The Secret Communication with the Unstable Cycle Track of Chaos Attractor;
利用混沌吸引子的不稳定周期轨道的保密通信
Communication Theory of Secrecy System
《保密系统的通信理论》
defense special secure communication system
国防专用保密通信系统
Research on Quantum Key Communications Technology in TT&C Network
航天测控网络中量子密钥通信技术应用研究
Research on and Implementation of Quantum Cryptography Communications Based on BB84 Protocol
基于BB84协议的量子密码通信的研究与实现
TheEffect of Dark Count on Bit Error Rate of Quantum Cryptography Communication
量子密码通信中暗计数对误码率的影响
Freedom and privacy of correspondence shall be protected by law.
通信自由和通信秘密受法律保护。
particle flux density monitor
粒子通量密度监测器
neutron flux density scanning assembly
中子通量密度扫描装置