A New Way for Reversible Tau-P Transform by FFT

摘要：

Based on the Fourier Slice Theorem, through analyzing the physical significances of the DFT and the relationship between the DFT and the FFT, this paper proposed a new way for implementing the Tau-P transform by the FFT. By comparison with other existing ways, the mainly difference of the forward process is to directly convert signal from f-x domain to fp domain other than from f-x domain to f-k domain and then through interpolation and coordinate transform to f-p domain, and the inverse process is converse. Otherwise, two points need to be considered, the first is that the number for the FFT on the process from f-x domain to f-p domain is variable with the frequency sample. The bigger the frequency is, the smaller the number for the FFT. The second is that the background energy should be recalled for faithfully reconstructing the copy of the original data. Through the example testing, the new Tau-P transform proposed here is the reversible process. Meanwhile, the new way is faster since its three steps all implemented by FFT, no interpolation and coordinate conversion like other ways.

关键词： Tau-P transform slant stack background energy

作者: S.P.PENG D.K.HE H.L.XIAN H.Q.LI J.W.GOU

作者单位: State Key Laboratory of Coal Resources and Safe Mining China University of Mining & Technology (Beijing) Beijing, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 2576-2579

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）