GRACE-A and GRACE-B together
GRACE-A and GRACE-B together
GRACE-A and GRACE-B together
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GPS Clocks<br />
Estimation of the 5-min <strong>and</strong> the 30-s phase GPS clocks<br />
using 40 IGS stations<br />
Selection of the reference clock (BRUS, USNO or WTZR)<br />
Alignment of the reference clock to the broadcast GPS clocks<br />
(daily bias <strong>and</strong> drift estimation)<br />
Pre-processing of the phase/code data<br />
based on Melbourne-Wübbena LC<br />
Estimation of the 5-min GPS clocks only to clean data<br />
using code <strong>and</strong> phase measurements<br />
Pre-processing of the phase data<br />
using the 5-min GPS clocks<br />
Estimation of the 30-s GPS clocks<br />
using phase measurements <strong>and</strong> code measurements (only reference station)<br />
- normal equation matrix with up to 5000 phase ambiguities<br />
FGS Workshop 2004, Höllenstein/Wettzell, October 27 - 29, 2004
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