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GPS Carrier-Phase Time Transfer Using Single-Difference Integer Ambiguity Resolution
المؤلفون المشاركون
Mercier, F.
Delporte, J.
Galy, O.
Laurichesse, D.
المصدر
International Journal of Navigation and Observation
العدد
المجلد 2008، العدد 2008 (31 ديسمبر/كانون الأول 2008)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2008-12-31
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
GPS is widely used for time and frequency transfer.
To estimate the clock difference between two ground stations, a single baseline solution can be performed using external products for the modelling of the geometrical effects (constellation ephemeris and station coordinates).
The baseline solution relies on a single-difference formulation, using code and phase ionosphere-free measurements.
The phase ambiguities are usually adjusted as floating parameters.
Such solutions give very good results when modelling hypotheses are consistent between the external solution (e.g., GPS orbits) and the baseline solution.
However, the frequency bias in the computed clock is very sensitive to discrepancies in the models, and is only observed thanks to the code measurement, with limitations due to the noise.
Here, we propose to solve the integer ambiguities on single-difference phase measurements.
The advantage is the complete elimination of the clock drifts observed in floating ambiguities solutions.
This formulation allows also a reliable continuous connection between overlapping clock solutions (jumps between such solutions can be completely eliminated).
Several time transfer results are analyzed and compared to TWSTFT.
The methodology has been extended to a network of stations using integer ambiguities on zero-difference measurements.
The corresponding results are given for a few European stations.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Delporte, J.& Mercier, F.& Laurichesse, D.& Galy, O.. 2008. GPS Carrier-Phase Time Transfer Using Single-Difference Integer Ambiguity Resolution. International Journal of Navigation and Observation،Vol. 2008, no. 2008, pp.1-7.
https://search.emarefa.net/detail/BIM-459410
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Delporte, J.…[et al.]. GPS Carrier-Phase Time Transfer Using Single-Difference Integer Ambiguity Resolution. International Journal of Navigation and Observation No. 2008 (2008), pp.1-7.
https://search.emarefa.net/detail/BIM-459410
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Delporte, J.& Mercier, F.& Laurichesse, D.& Galy, O.. GPS Carrier-Phase Time Transfer Using Single-Difference Integer Ambiguity Resolution. International Journal of Navigation and Observation. 2008. Vol. 2008, no. 2008, pp.1-7.
https://search.emarefa.net/detail/BIM-459410
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-459410
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