| 滤波原理和一般线性时间不变系统──地震学上用的数字信号处理的基本原理与实例(讲座1) |
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| 引用本文： | 陈祥熊,江燕.滤波原理和一般线性时间不变系统──地震学上用的数字信号处理的基本原理与实例(讲座1)[J].地震地磁观测与研究,1997(6). |
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| 作者姓名： | 陈祥熊 江燕 |
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| 作者单位： | 福建省地震局 |
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| 摘 要： | 从滤波和系统理论的一些基本概念出发，介绍了简单的阻容滤波器原理，它的微分方程表达，频率响应函数，传递函数以及在离散数据处理中滤波器的差分方程表达。最后推广到对一般线性时间不变系统的处理。这些概念和原理是数字信号处理的基础。
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| 关 键 词： | 数字地震学 滤波器原理 频率响应函数 传递函数 |
Basic principle of filter and general linear time invariant systemthe basic principle of digital signal processing used in seismology and practical examples (1) |
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| Chen Xiangxiong and Jiang Yan.Basic principle of filter and general linear time invariant systemthe basic principle of digital signal processing used in seismology and practical examples (1)[J].Seismological and Geomagnetic Observation and Research,1997(6). |
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| Authors: | Chen Xiangxiong and Jiang Yan |
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| Abstract: | Starting from some basic concepts of filter and system theory, the paper introduced the principle of a simple RC filter, and its representation of differential equation, frequency response function, transfer function as well as the difference equation representation of filter in discrete data processing, and finally expanding the analysis of the simple system to the treatment to general linear time invariant system. These concepts and principles are basis of digital signal processing. |
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| Keywords: | digital seismology principles of filter frequency response function transfer function |
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