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Publikationen am Fachgebiet Physikalische Geodäsie

GNSS Precise Kinematic Positioning for Multiple Kinematic Stations Based on A Priori Distance Constraints
Zitatschlüssel escidoc:1504248
Autor He, Kaifei and Xu, Tianhe and Förste, C. and Petrovic, S. and Barthelmes, F. and Jiang, Nan and Flechtner, Frank
Jahr 2016
DOI 10.3390/s16040470
Journal Sensors
Jahrgang 16
Zusammenfassung When applying the Global Navigation Satellite System (GNSS) for precise kinematic positioning in airborne and shipborne gravimetry, multiple GNSS receiving equipment is often fixed mounted on the kinematic platform carrying the gravimetry instrumentation. Thus, the distances among these GNSS antennas are known and invariant. This information can be used to improve the accuracy and reliability of the state estimates. For this purpose, the known distances between the antennas are applied as a priori constraints within the state parameters adjustment. These constraints are introduced in such a way that their accuracy is taken into account. To test this approach, GNSS data of a Baltic Sea shipborne gravimetric campaign have been used. The results of our study show that an application of distance constraints improves the accuracy of the GNSS kinematic positioning, for example, by about 4 mm for the radial component.
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