Publications

 

The ADVANTAGE white paper (23 January 2018) can be downloaded here.

 

System architecture – Kepler

Advanced Technologies for Satellite Navigation and Geodesy.
G. Giorgi, T.D. Schmidt, C. Trainotti, R. Mata-Calvo, C. Fuchs, M.M. Hoque, J. Berdermann, J. Furthner, C. Günther, T. Schuldt, J. Sanjuan, M. Gohlke, M. Oswald, C. Braxmaier, K. Balidakis, G. Dick, F. Flechtner, M. Ge, S. Glaser, R. König, G. Michalak, M. Murböck, M. Semmling, H. Schuh.
Advances in Space Research, 2019, 64(6), pp. 1256-1273. DOI: 10.1016/j.asr.2019.06.01

Kepler – Satellite Navigation System Description and Validation.
C. Günther.
Proceedings of the
9th Workshop on Satellite Navigation Technologies (NAVITEC 2018), European Space Research and Technology Centre (ESTEC), Noordwijk, The Netherlands, 2018.

Kepler – A Satellite Navigation System without Clocks and little Ground Infrastructure.
C. Günther.
Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2018), Miami, FL, USA, 2018, pp. 849-856. DOI:
10.33012/2018.15997

Future GNSS constellations with optical inter-satellite links. Preliminary space segment analyses.
G.
Giorgi, B. Kroese, G. Michalak.
Proceedings of the IEEE Aerospace Conference 2019, Big Sky, MT, USA. DOI: 10.1109/AERO.2019.8742105

Optical Frequency References

Optical Clock Technologies for Future GNSS.
Schuldt, Oswald, Gohlke, Sanjuan, Abich, Doringshoff, Kovalchuk, Peters, Braxmaier.
Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2018), Miami, FL, USA, 2018, pp. 857-860. DOI: 10.33012/2018.15885

An Absolute Optical Frequency Reference for Space.
Schuldt, Oswald, Gohlke, Doringshoff, Ko
valchuk, Peters, Braxmaier.
 Proceedings of the International Conference on Space Optics (ICSO2018), 11807X, Chania, Greece, 2018. DOI: 10.1117/12.2536204

Optical Frequency References for Space.
Schuldt, Oswald, Gohlke, Doringshoff, Kovalchuk, Johann,
Peters, Braxmaier.
Proceedings of the IAC 2018, Bremen, Germany, 2018.

Optical Inter-Satellite Links

Laboratory Characterization of Optical Inter-satellite Links for Future GNSS.
J. Surof, J. Poliak, R.M. Calvo, M. Richerzhagen, R. Wolf, T.D. Schmidt.
Proceedings of the 32nd International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2019), Miami, FL, USA, 2019 (to appear).

Laboratory demonstrator of optical inter-satellite links for the Kepler system.
J. Poliak, R. Mata Calvo, and J. Surof.
Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2018), Miami, FL, USA, 2018, pp. 861-867. DOI: 10.33012/2018.15886

Timing aspects

Detection and Identification of Faults in Clock Ensembles.
C. Trainotti, G. Giorgi, J. Furthner.
Proceedings of the 32nd International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2019), Miami, FL, USA, 2019 (to appear).

Comparison between simulation and hardware realization for different clock steering techniques.
M. Gödel, T.D. Schmidt, J. Furthner.
Metrologia, 56(3), 2019.  DOI:10.1088/1681-7575/ab144d

Simulating the Realization of a Mixed Clock Ensemble.
C. Trainotti, T.D. Schmidt, J. Furthner.
Proceedings of the Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum (EFTF), Orlando, FL, USA, 2019. DOI: 10.1109/FCS.2019.8856103

Comparison of Clock Models in View of Clock Composition, Clock Steering and Measurement Fitting.
C. Trainotti, T.D. Schmidt, J. Furthner.
Proceedings of the ION Precise Time and Time Interval Meeting (PTTI), pp. 265-283, Reston, VA, USA, 2019. DOI: 10.33012/2019.16756

Comparing Clock Steering Technique Performances in Simulations and Measurements.
T.D. Schmidt,
C. Trainotti, J. Furthner.
Proceedings of the ION Precise Time and Time Interval Meeting (PTTI), Reston, VA, SA, 2019. DOI: 10.33012/2019.16758

Composite Clock Algorithms for System Time in Global Navigation Satellite Systems.
T.D. Schmidt, C. Trainotti, J. Isoard, G. Giorgi, J. Furthner, C. Günther.
Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2018), Miami, FL, USA, 2018, pp. 963 – 967. DOI: 10.33012/2018.15891

Relativistic corrections for intersatellite frequency transfer.
B. Kroese, G. Giorgi, and C. Günther.
Proceedings of the 32nd European Frequency and Time Forum (EFTF) 2018, Torino, Italy, April 2018. DOI: 10.1109/EFTF.2018.8409041

Investigation of Pole Placement Technique for Clock Steering.
T.D. Schmidt, M. Gödel, J. Furthner.
Proceedings of the 49th Annual Precise Time and Time Interval Systems and Applications Meeting (PTTI), Reston, Virginia, January 2018, pp. 22-29.  DOI: 10.33012/2018.15603

Precise Orbit Determination

Precise orbit and reference frame determination supported by LEO satellites, inter-satellite links and synchronized clocks of a future GNSS.
G. Michalak, S. Glaser, K. Neumayer, and R. König.
Proceedings of the 7thtColloquium on Scientific and Fundamental Aspects of GNSS, Zurich, Switzerland, 2019 (to appear).

Precise Orbit Determination with Inter-satellite Links and Ultra-stable Time for a Future Satellite Navigation System.
G. Michalak, K. Neumayer, and R. König.
Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2018), Miami, FL, USA, 2018, pp. 968-1001. DOI: 10.33012/2018.15892

Exploitation

Sea Ice concentration derived from GNSS reflection measurements in Fram Strait.
M. Semmling, A. Rosel, D. Divine, S. Gerland, G. Stienne, S. Reboul, M. Ludwig, J. Wickert, and H. Schuh.
IEEE Transactions on Geoscience and Remote Sensing, accepted for publication, 2019.  DOI: 10.1109/TGRS.2019.2933911

Future SLR station networks in the framework of simulated multi-technique terrestrial reference frames.
S. Glaser, R. König, K. Neumayer, et al.
Journal of Geodesy, accepted for publication, 2019. DOI: 10.1007/s00190-019-01256-8

Retrieving precipitable water vapor from shipborne multi‐GNSS observations.
J. Wang, Z. Wu, M. Semmling, F. Zus, S. Gerland, M. Ramatschi, et al.
Geophysical Research Letters, 46(9), pp. 5000–5008, (2019). DOI: 10.1029/2019GL082136

Precise Point Positioning with Kepler.
P. Henkel.
Proceedings of the 90th IEEE Vehicular Technology Conference (VTC2019), Honolulu, HI, USA, 2019 (to appear).

On the impact of local ties on the datum realization of global terrestrial reference frames.
S. Glaser,
R. König, K.H. Neumayer, T. Nilsson, R. Heinkelmann, F. Flechtner, H. Schuh.
Journal of Geodesy, 93(5), pp. 655–667, 2018. DOI: 10.1007/s00190-018-1189-0

Estimates of higher order ionospheric effects for GNSS signals received onboard LEO satellites.
M.M.
Hoque.
Proceedings of the International Workshop on GNSS Ionosphere (IWGI2018)- Observations, Advances and Opportunities, November 4-6, Shanghai, China, 2018.

An over bounding model of higher order ionospheric residuals for dual-frequency SBAS.
M.M. Hoque
and S. Schlüter.
Proceedings of the 2nd URSI AT-RASC, Gran Canaria, 28 May–1 June 2018.

Estimating integrated water vapor trends from VLBI, GPS, and numerical weather models: Sensitivity to tropospheric parameterization.
K. Balidakis, T. Nilsson, F. Zus, S. Glaser, R. Heinkelmann, Z. Deng, H. Schuh.
Journal of Geophysical Research: Atmospheres, 123, pp. 6356–6372, 2018. DOI:10.1029/2017JD028049