时频分析的重排方法及其在声波测井信号处理中的应用

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The Reassignment Method Based on Time-Frequency Analysis and Its Application in the Array Acoustic Logging Data Processing

WANG Zhu-wen¹, LIU Jing-hua¹, NIE Chun-yan²

1.College of GeoExploration Science and Technology, Jilin University, Changchun 130026，China;2.Electronic Information Institute, Changchun University, Changchun 130022, China

Received:2007-01-16 Revised:1900-01-01 Online:2007-09-26 Published:2007-09-26
Contact: WANG Zhu-wen

Abstract

Abstract: A reassignment method for nonstationary time-frequency joint analysis is introduced. This method creates a modified version of a representation by moving its values away from where they are computed, so as to produce a better localization of the signal components and improve the readability of the representation. A few examples are presented to show the effects of this method. Finally, the application of this method in array acoustic logging signal processing is proposed.

Key words: time-frequency analysis, array acoustic logging, reassignment

CLC Number:

P631.8

WANG Zhu-wen, LIU Jing-hua, NIE Chun-yan. The Reassignment Method Based on Time-Frequency Analysis and Its Application in the Array Acoustic Logging Data Processing[J].J4, 2007, 37(5): 1042-1046.

References

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