DocumentCode
1145551
Title
Determination of the dispersion curve of the refractive index by the stockwell transform
Author
Saracc, Z. ; Birkok, H.G. ; Ecevit, F.N. ; Tutkun, Nedim
Author_Institution
Dept. of the Electr. & Electron. Eng., Zonguldak Karaelmas Univ., Zonguldak, Turkey
Volume
3
Issue
4
fYear
2009
fDate
8/1/2009 12:00:00 AM
Firstpage
180
Lastpage
186
Abstract
The determination of dispersion curves by the Stockwell transform (ST) is proposed. The required numerical data for dispersion curves are produced from the transmittance signal by the ST. The obtained data are then used to estimate the unknown dispersion parameters in Cauchy´s formula using the genetic algorithm method through the minimisation problem based on the least-squares curve fitting. The results have shown that the dispersion curve obtained from the ST produced more improved outcomes than those obtained from the continuous wavelet transform.
Keywords
curve fitting; genetic algorithms; least squares approximations; optical dispersion; refractive index; wavelet transforms; Cauchy´s formula; Stockwell transform; continuous wavelet transform; dispersion curve determination; genetic algorithm method; least-squares curve fitting; numerical data; refractive index; transmittance signal;
fLanguage
English
Journal_Title
Optoelectronics, IET
Publisher
iet
ISSN
1751-8768
Type
jour
DOI
10.1049/iet-opt.2008.0013
Filename
5172817
Link To Document