| 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。 |
| 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 |
| DOI：10.3969/j.issn.1001-893X. |
| 投稿时间：2007-09-10修订日期：2007-12-25 |
| 基金项目:国家自然科学基金资助项目(60062001) |
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| Multi-modal Noise Theory and its Application in Secure Communications |
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| () |
| Abstract: |
| 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. |
| Key words: secure communications,non-Gaussian noise,multi-modal noise,inertia-less nonlinear transformer,channel encryption |
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