Travel-Time Errors Due To Data Gaps

被引：0
|
作者：
Beck, J. G. [1 ]
Duvall, T. L., Jr. [2 ]
Zhao, J.
机构：
[1] Stanford Univ, WW Hansen Expt Phys Lab, Stanford Solar Observ, Room 130-452 Lomita Mall, Stanford, CA 94305 USA
[2] NASA, Goddard Space Flight Ctr, Astron & Solar Phys Lab, Greenbelt, MD 20771 USA
来源：
SOLAR-STELLAR DYNAMOS AS REVEALED BY HELIO AND ASTEROSEISMOLOGY: GONG 2008/SOHO 21 | 2009年 / 416卷
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D O I：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Time-distance measurements of wave packet travel times can be used to determine various properties of the plasma through which the p modes propagate, however, missing data can introduce significant errors in the travel time measurements. We find that the magnitude of the error depends on the amount of missing data, the temporal position of the data gaps, and the travel distance, but not on the continuity of data gaps. Further, apodizing the data gaps or linearly filling the gaps fails to reduce the errors.
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页码：135 / +
页数：2
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