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Three-Corner Hat for the assessment of the uncertainty of non-linear residuals of space-geodetic time series in the context of terrestrial reference frame analysis

C. Abbondanza; Z. Altamimi; T. Chin; R. Gross; M. Heflin; J. Parker; X. Wu

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ЦБ II 1576

Детайли

Източник
Journal of Geodesy
Издателство
Springer Berlin Heidelberg
Година на издаване
2015
Страници
с.313-329
Том
89
Ключови думи
Международна земна референтна рамка, DORIS, SLR, VLBI, GPS
Отрасъл
Общ отдел. Наука. Библ. дело. Енциклопедии
Пор.№
4
Забележка
Рез. от англ. ез.
Анотация
We discuss the application of the Three-Corner Hat (TCH) to time series of space-geodetic station position residuals with the purpose of characterizing the uncertainties of GPS, VLBI, SLR, DORIS for the International Terrestrial Reference Frame (ITRF) determination. Adopting simulations, we show that, in the absence of time-correlated errors, TCH is able to fully recover the nominal uncertainties of groups of observations whose intrinsic precisions are remarkably dissimilar to one another, as is the case for the space-geodetic techniques. When time-correlated errors are predominant, as it happens with GPS, TCH is affected by the increased variance of the observations and its estimates are positively biased.
Системен №
4252

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