Homomorphic deconvolution applied to ring diagram analysis

被引:0
|
作者
Baudin, F [1 ]
Hernández, IG [1 ]
Patrón, J [1 ]
机构
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
来源
SOHO 6/GONG 98 WORKSHOP ON STRUCTURE AND DYNAMICS OF THE INTERIOR OF THE SUN AND SUN-LIKE STARS, VOLS 1 AND 2: VOL 1: SESSIONS I-III, VOL 2: SESSIONS IV-VI | 1998年 / 418卷
关键词
sun; local seismology; ring diagrams; analysis method;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Ring diagram analysis and homomorphic deconvolution are two techniques used independently in solar seismology. The use of homomorphic deconvolution coupled to ring analysis may improve the precision of the latter technique, as the former does for regular time series analysis. In order to compare the use of the classical Fourier Transform and the homomorphic deconvolution, ring diagram analysis using both techniques has been applied to the same data set. Results are compared at different steps in the analysis, qualitatively and quantitatively. Results from the homomorphic deconvolution are similar to those of the Fourier Transform. However, some discrepancies sometimes larger than the observed uncertainties are observed, discrepancies whose origin is still unclear. The precision of the deconvolution is in general better than that of Fourier Transform, up to a factor of two in the best cases. These preliminary results encourage us to explore the possibilities of the homomorphic deconvolution coupled to ring diagram analysis.
引用
收藏
页码:721 / 724
页数:4
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