| 连续多发地震重叠记录的同态信号处理 |
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| 引用本文： | 周常羲,徐果明.连续多发地震重叠记录的同态信号处理[J].地震学报,1990,12(3):299-306. |
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| 作者姓名： | 周常羲 徐果明 |
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| 作者单位： | 中国科学技术大学地球和空间科学系 |
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| 摘 要： | 同态信号处理对于判别一个信号是否混叠有它的延迟信号,是一种有效的方法.文中首先讨论了同态信号处理的基本思想,及计算机实现同态信号处理的方法,用理论振波的多次延迟叠加进行了数值模拟的检验,结果表明能明显得到各延迟信号的延迟时间.最后,用此方法对1985年4月18日云南禄劝地震进行了同态信号处理,得到了满意的结果.
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| 关 键 词： | 同态信号处理 地震震源 最小相位系统 |
HOMOMORPHIC SINGAL PROCESSING FOR THE ALIASING SIESMIC SIGNALS |
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| Affiliation: | University of Science and Technology of China, Hefei |
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| Abstract: | The basic theory of convolution homomorphic signal processing and method of its computer realization are discussed in this paper. The dada processing of the reverberative theoretical signals verifies that this method works well in distinguishing delayed signals. Seismic records of Luquan earthquake which occurred in Yunnan province on April 18,1985 are analysed,and the result is pretty good. Convolution homomorphic signal processing seems to be an effective method for distinguishing the delayed signals from the reverberant signal. |
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