Shift sampling theory of Fourier transform computation

被引：16
|
作者：
Chai, YP
机构：
[1] China Oil Corporation,Bureau of Geophysical Prospecting
来源：
SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES | 1997年 / 40卷 / 01期
关键词：
Fourier transform; shift sampling theory; DFT xi eta; A-E equation; discrete effect minimization; truncation effect oscillation;
D O I：
10.1007/BF02916587
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The DFT transform is extended to DFTepsilon eta transform and the relationship between FT and DFTepsilon eta is given by the Fourier transform discretization theorem. Based on the theorem, the DFTepsilon eta algorithm-error equation (DFT(epsilon eta)A-E equation) is established, and the minimization property of discrete effect and the oscillation property of truncation effect are demonstrated. All these construct the shift sampling theory-a new theory about Fourier transform computation.
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页码：21 / 27
页数：7
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