摘要
探讨了地震数据经小波包变换压缩后对后续处理过程的影响,以及经过某些处理后的数据会对小波包变换压缩产生什么影响等问题。将小波包变换压缩地震数据的结果与快速傅里叶变换压缩地震数据的结果进行了对比,其结果表明:应用小波包变换压缩地震数据,有效信号的损失非常小,压缩比大于快速傅里叶变换的压缩比。在大批量地震数据处理中可以使用小波包变换压缩地震数据。
This paper will discuss the impacts of seismic data after wavelet packet transform compression on subsequent processing and the impacts of seismic data after certain processing on compression. The seismic data compressed by 2D wavelet packet transform can be compared with the seismic data compressed by fast Fourier transforms, and the results have shown that the compression of wavelet packet transform is very small in loss of effective signal, and has a higher compression ratio than that of Fourier transforms. The wavelet packet transform can be used to compress seismic data in large batch processing.
出处
《中国海上油气（工程）》
2006年第3期169-173,共5页
China Offshore Oil and Gas
关键词
小波包变换
快速傅里叶变换
压缩比
地震数据处理
wavelet packet transform
fast Fourier transform
data compression ratio
seismic data processing
