OPTIMIZED FAST HANKEL TRANSFORM FILTERS

被引：94
|
作者：
CHRISTENSEN, NB
机构：
[1] Laboratory of Geophysics, Geological Institute, University of Aarhus, Aarhus, 8200
来源：
GEOPHYSICAL PROSPECTING | 1990年 / 38卷 / 05期
关键词：
D O I：
10.1111/j.1365-2478.1990.tb01861.x
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
In the linear digital filter theory for calculation of Hankel transforms it is possible to find explicit series expansions for the filter coefficients. A method is presented for optimizing the Hankel filters calculated in this way. For a certain desired accuracy of computation, the sampling density and filter length are minimized by choosing the parameters determining the filter characteristics according to the analytical properties of the input function. A new approach to the calculation of the filter coefficients has been developed for these optimized filters. The length of the filters may be further reduced by introducing a shift in the sampling scheme. Copyright © 1990, Wiley Blackwell. All rights reserved
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页码：545 / 568
页数：24
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