摘要
为了提高地震资料的信噪比和分辨率,以小波变换为基础,在叠加前对地震资料分解,对分解后的各尺度信号做谱白化处理,以提高叠前地震资料的高频成分;然后对各尺度记录做相关加权叠加,形成各尺度叠加剖面;最后进行信噪比加权重构. 应用该方法处理实际资料,结果表明,该方法不仅可有效地提高叠加剖面的信噪比,而且可提高剖面的分辨率.
In order to improve signal/noise ratio and the resolution, the seismic data is resolved before stack by wavelet transform, and each scale seismic record is processed by spectrum whitening to improve the high frequency composition of seismic data. Then correlation weighted stack is made to each scale record, forming stack profiles of each scale. Finally, we reconstructed the stack profile by S/N ratio weighting. The result of real seismic data processing shows that this method not only improves signal/noise ratio , but also improves the resolution.
出处
《大庆石油学院学报》
CAS
北大核心
2005年第1期9-11,共3页
Journal of Daqing Petroleum Institute
关键词
小波变换
叠加
加权
信噪比
分辨率
wavelet transform
stack
weighting
S/N ratio
resolution
