In this paper, the methods of obtaining parameters for high levels of correlation are presented with emphasis on linear system analysis.

对得到较高水平的相关性参数的方法——统计矩分析及线性系统分析进行了论述，着重论述了卷积法在相关性研究中的应用。

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This paper defines phase and group delay distortion of audio system based on point view of linear system analysis and the physical meanings of group delay is discussed.

本文从线性系统分析的角度定义了音响系统的相位和群延迟失真，并讨论了所定义的群延迟物理意义。

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By using multilevel substructure analysis and finite element displacement method, this system is suitable for various linear static analysis of aeronautical structures.

这一系统采用多级子结构分析技术，可以适应各种类型航空结构的线性静力分析。

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