Precision Geodesy Using the Mark-III Very-Long-Baseline Interferometer System
Precision Geodesy Using the Mark-III Very-Long-Baseline Interferometer System
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DOI:
10.1109/tgrs.1985.289433
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发表时间:
1985-07
影响因子:
8.2
通讯作者:
T. Clark;B. Corey;James Davis;G. Elgered;T. Herring;H. Hinteregger;C. Knight;J. Levine;G. Lundqvist;Chopo Ma;E. Nesman;R. Phillips;Alan E. Rogers;B. Ronnang;J. Ryan;B. Schupler;D. Shaffer;I. Shapiro;N. Vandenberg;J. Webber;A. Whitney
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文献类型:
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作者:
T. Clark;B. Corey;James Davis;G. Elgered;T. Herring;H. Hinteregger;C. Knight;J. Levine;G. Lundqvist;Chopo Ma;E. Nesman;R. Phillips;Alan E. Rogers;B. Ronnang;J. Ryan;B. Schupler;D. Shaffer;I. Shapiro;N. Vandenberg;J. Webber;A. Whitney
Very-long-baseline interferometry (VLBI) has been used to make precise measurements of the vector separation between widely separated antennas. The system for acquiring and processing VLBI data known as Mark-III is described. Tests of the system show it to have millimeter-level accuracy on short baselines; measurements of baselines longer than a few hundred kilometers suggest that accuracy is limited by the uncertainty in the calibration of tropospheric path delay to the level of a few centimeters. VLBI experiments conducted between 1976 and 1983 have demonstrated the stability of the North American plate by showing that there is no change in the distance between easternl-California and Massachusetts at the level of a few millimeters per year or greater. Experiments made from 1980 to 1984 indicate that the distance from Massachusetts to Sweden is increasing by 1.7 ± 1 cm/year where the quoted standard deviation includes the estimated effects of systematic atic errors