地质信号的频谱特征与实例

Spectrum Signature for Geological Signal and an Applying Case

提出了对地质信号进行频谱特征分析的原理和方法:将地质领域中的周期性现象视为地质信号的反映,一个实际地质信号由若干个不同圆频率周期的地质信号叠加而成,而且受到复杂地质作用的干扰(视为嗓音)。采用频谱处理方法可以将实际地质信号分解成背景成分及若干个具圆频率周期的地质信号,并识别出其中的噪音成分。运用米兰科维奇理论和地质信号频谱特征分析原理和方法,对一实际密度测井资料进行处理和分析,表明频谱特征分析方法可以作为地质信号研究的一种手段。

By processing of Frequency spectrum,an actual geological signal can be decomposed into background components and several stacking geological signals with cyclospectrum,from which noise components can be recognized.Combined with Milankovitch theory,the principle of the spectrum signature a- nalysis for geological signal is applied into an actual case in which some density logging data of carbonate rock are pro- cessed and analyzed well It is shown that the method of spec- trum signature analysis may be a means for analyzing geolog- ical signal.