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arXiv cs/0609042cs.ITmath.IT
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关于散度-幂不等式

On Divergence-Power Inequalities

Jacob Binia

摘要:

给出了平稳随机过程在时间离散和带限时间连续两种情况下的(EPI-Shannon型)散度-幂不等式(DPI)的表达式。新的表达式将独立过程之和的发散率、每个过程的个体发散率以及它们的功率谱密度联系起来。所有的发散都是在具有相同二阶统计量的过程和高斯过程之间,并且假设是有限的。香农熵功率不等式EPI的一个新的证明,基于发散和因果最小均方误差(CMMSE)在高斯信道与大信噪比之间的关系,也示出。

英文摘要:

Expressions for (EPI Shannon type) Divergence-Power Inequalities (DPI) in two cases (time-discrete and band-limited time-continuous) of stationary random processes are given. The new expressions connect the divergence rate of the sum of independent processes, the individual divergence rate of each process, and their power spectral densities. All divergences are between a process and a Gaussian process with same second order statistics, and are assumed to be finite. A new proof of the Shannon entropy-power inequality EPI, based on the relationship between divergence and causal minimum mean-square error (CMMSE) in Gaussian channels with large signal-to-noise ratio, is also shown.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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