广义S变换在地震信号处理中的应用研究
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摘要
地震信号处理是地震勘探的一个重要部分,而非平稳信号的处理又是地震信号处理的一个重要环节.在前人对S变换的研究基础之上,通过引入调节参数将S变换推广为广义S变换,并利用广义S变换算法程序对合成的非平稳信号和模拟地震信号进行处理,得到了良好的时频谱.同时,对比广义S变换的实部和模对时频信号的分离情况,并取得了良好的对比效果.
Seismic signal processing is an important part of seismic exploration, and non-stationary signal processing is an important part of seismic signal processing. In this paper, on the basis of previous studies on S-transform, S-transform is extended to generalized S-transform by introducing adjusting parameters, and the synthetic non-stationary signal and analog seismic signal are processed by using the generalized S-transform algorithm program, and good time-frequency spectrum is obtained. Besides, the separation of time-frequency signals by the real part and the mode of generalized S-transform is compared, and good contrast results are obtained.
Seismic signal processing is an important part of seismic exploration, and non-stationary signal processing is an important part of seismic signal processing. In this paper, on the basis of previous studies on S-transform, S-transform is extended to generalized S-transform by introducing adjusting parameters, and the synthetic non-stationary signal and analog seismic signal are processed by using the generalized S-transform algorithm program, and good time-frequency spectrum is obtained. Besides, the separation of time-frequency signals by the real part and the mode of generalized S-transform is compared, and good contrast results are obtained.
引文
[1] 熊晓军,贺振华,黄德济,等.广义S变换在地震高分辨处理中的应用[J].油气藏评价与开发,2006,29(6):415-418.
[2] STOCKWELL R G,MANSINHA L,LOWE R P.Localization of the complex spectrum;the S transform[J].IEEE Tran.On signal Processing,1996,17:998-1001.
[3] 陈学华,贺振华,黄德济.广义S变换及其时频滤波[J].信号处理,2008,24(1):28-31.
[4] 魏学强.基于广义S变换的沉积旋回分析方法研究[J].西安石油大学学报(自然科学版),2013,28(4):35-40.
[5] 高静怀,陈文超,李幼铭,等.广义S变换与薄互层地震响应分析[J].地球物理学报,2003,46(4):526-532.
[6] 黄捍东,冯娜,王彦超,等.广义S变换地震高分辨率处理方法研究[J].石油地球物理勘探,2014,49(1):82-88.
[7] 张固澜,熊晓军,容娇君,等.基于改进的广义S变换的地层吸收衰减补偿[J].石油地球物理勘探,2010,45(4):512-515.
[2] STOCKWELL R G,MANSINHA L,LOWE R P.Localization of the complex spectrum;the S transform[J].IEEE Tran.On signal Processing,1996,17:998-1001.
[3] 陈学华,贺振华,黄德济.广义S变换及其时频滤波[J].信号处理,2008,24(1):28-31.
[4] 魏学强.基于广义S变换的沉积旋回分析方法研究[J].西安石油大学学报(自然科学版),2013,28(4):35-40.
[5] 高静怀,陈文超,李幼铭,等.广义S变换与薄互层地震响应分析[J].地球物理学报,2003,46(4):526-532.
[6] 黄捍东,冯娜,王彦超,等.广义S变换地震高分辨率处理方法研究[J].石油地球物理勘探,2014,49(1):82-88.
[7] 张固澜,熊晓军,容娇君,等.基于改进的广义S变换的地层吸收衰减补偿[J].石油地球物理勘探,2010,45(4):512-515.