| 基于小波变换的高分辨率地震信号瞬时参数提取方法 |
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| 引用本文： | 刘霞,吴伟龙,高晓春,潘红萍. 基于小波变换的高分辨率地震信号瞬时参数提取方法[J]. 科学技术与工程, 2011, 11(7) |
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| 作者姓名： | 刘霞 吴伟龙 高晓春 潘红萍 |
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| 作者单位： | 1. 东北石油大学电气信息工程学院,大庆,163318
2. 宏伟热电厂,大庆,163411 |
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| 摘 要： | 小波变换在时域以及频域具有良好的局域化特征,可用来实现对地震信号瞬时振幅、相位、频率等瞬时参数的提取.由于小波变换具有去噪的功能和分频处理的特点,在小波域提取的瞬时特征具有很好的抗噪性和可靠性.对小波变换提取地震信号瞬时参数的方法进行改进,通过对地震信号求导来增加其主频,对求导后的地震信号进行小波变换,从而得到高分辨率地震信号的瞬时参数.
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| 关 键 词： | 地震信号 小波变换 瞬时参数 高分辨率 |
The Research of Extract Method of High Resolution Seismic Signal's Instantaneous Parameters Based on Wavelet Transform |
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| LIU Xia,WU Wei-long,GAO Xiao-chun,PAN Hongping. The Research of Extract Method of High Resolution Seismic Signal's Instantaneous Parameters Based on Wavelet Transform[J]. Science Technology and Engineering, 2011, 11(7) |
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| Authors: | LIU Xia WU Wei-long GAO Xiao-chun PAN Hongping |
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| Affiliation: | LIU Xia1,WU Wei-long1,GAO Xiao-chun2,PAN Hong-ping1 (College of Electrical & Information Engineering,Northeast Petroleum University1,Daqing 163318,P.R.China,HongWei Thermo-Electricity Power Plant2,Daqing 163411,P.R.China) |
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| Abstract: | Wavelet transform have good localization in time domain and frequency domain,it can be used to extract the instantaneous amplitude,the instantaneous phase,the instantaneous frequency of the seismic signals.Instantaneous parameters extracted in the wavelet domain have good noise immunity and good reliability,because the wavelet transform own the characteristics of frequency division and the function of noise removed.The method is improved that extraction method of the seismic signal's instantaneous parameter... |
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| Keywords: | seismic signal wavelet transform instantaneous parameters high resolution |
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