Numerical transformations of wide-range time- and frequency-domain relaxational spectra

被引：26

作者：

Farag, N ^{[1
]}

Holten, S ^{[1
]}

Wagner, A ^{[1
]}

Kliem, H ^{[1
]}

机构：

[1] Univ Saarland, Inst Elect Engn Phys, D-66041 Saarbrucken, Germany

来源：

IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY | 2003年 / 150卷 / 02期

关键词：

D O I：

10.1049/ip-smt:20030224

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A numerical method is presented, which allows the calculation of distribution functions for relaxational systems from measured time-domain and frequency-domain spectra. The method is a further development of an earlier published algorithm to compute distribution functions from time-domain measurements. Besides the back-transform of time and frequency data, the new algorithms also allow the numerical calculation of the Kramers-Kronig relations and a Fourier transform using the distribution domain. A presumed distribution is altered and adjusted iteratively by the comparison of data calculated from the assumed spectrum with the measured data. A smoothing procedure is carried out to gain stability against noise.

引用

页码：65 / 74

页数：10

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