多模噪声理论及其在通信保密中的应用  

Multi-modal Noise Theory and its Application in Secure Communications

作　　者：山拜.达拉拜 黄玉划[1] 

机构地区：[1]新疆大学信息科学与工程学院,乌鲁木齐830046

出　　处：《电讯技术》2008年第2期20-24,共5页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(60062001)

摘　　要：给出了一种比较通用的非高斯噪声模型——多模噪声,采用无惯性非线性变换器给出了多模噪声中信号的检测与估计方法,该方法对概率密度函数形状对称的噪声是普遍适用的。在此基础上设计了可用于通信保密的多模噪声,说明了本加密方法适用于无线通信信道加密,并从统计分析的角度研究了可能的密码分析方法。A more universal model of non - Gaussian noise, multi - modal noise is defined, The inertia - less nonlinear transformer is employed to give out the algorithms of signals detection and estimation in multi - modal noise. The algorithms are applicable to noise with symmetric probability density function. On this base, the multi - modal noise suitable for secure communications is designed. It illuminates that the method is agreeable to channel encryption in radio communication. The potential algorithm of cryptanalysis is studied with statistics.

关 键 词：保密通信 非高斯噪声 多模噪声 无惯性非线性变换器 信道加密 

分 类 号：TN911[电子电信—通信与信息系统] TN918[电子电信—信息与通信工程]