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E. Engler, A. Hornbostel R. Krämer, T. Noack, A. Steingass
"Endbericht zum Forschungsvorhaben: Simulation von
Satellitennavigationssystemen zur Analyse und Optimierung von GNSS - NAV-SIM Abschlussbericht ", 2001
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E. Engler, A. Steingass, S. Schlüter, R. Krämer, T. Noack
"Evaluating the Performance of GALILEO using the NavSim tool"
German Aerospace Congress (GAC'01), Hamburg, Germany, September 2001
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E. Engler, A. Steingass, S. Schlüter, R. Krämer, T. Noack
"Evaluating the Performance of GALILEO using the NavSim tool"
The Satellite Division of the Institute of Navigation 14th International Technical Meeting (ION GPS'01),
Salt Lake City, Utah, USA, September 10-14, 2001
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M. Leonardi, F. Martinino, M.R. Merino, A. Mozo, B.M. Peiro, S. Schlüter, R. Krämer
"Information Data within the Galileo Message"
5rd European Symposium on Global Navigation Satellite Systems (GNSS 2001), Seville, Spain, May 8-11, 2001
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A. Schroth, R. Krämer, U. Grunert
"Anwendungspotenziale für satellitengestützte Zeitsynchronisation"
Commercial Applications of Satellite-Navigation, Oberpfaffenhofen, Germany, April 25, 2001
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J. Furthner, A. Hornbostel, E. Engler, R. Krämer, A. Steingass, H.P. Müller, H. Nickl, J. Selva, S. Schlüter, T. Noack
"An End-to-end Simulation Tool for Navigation Systems like GPS or the European GALILEO"
19th AIAA International Communications Satellite Systems Conference, April 17-20, 2001
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Rainer Krämer
"Simulation der Uhren-und Systemzeitfehler in NavSim"
Progress Meeting NavSim, Oberpfaffenhofen, Germany, April 2, 2001
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Rainer Krämer, Ulrich Grunert
"GPS time accuracy after the selective availability (SA) switch off"
Proceedings of the 15th European Frequency and Time Forum (EFTF 2001), Neuchatel, Switzerland, March 6-8, 2001
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J. Furthner, E. Engler, A. Steingaß, M. Angermann, J. Hahn, A. Hornbostel, R. Krämer, H.P. Müller, T. Noack,
P. Robertson, S. Schlüter, J. Selva
"Realisation of an End-to-End Software Simulator for Navigation Systems"
International Journal of Satellite Communications (IJSC), Special Edition on Satellite Navigation and Positioning,
No.18, pp 371-389, Wiley & Sons, 2000
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Rainer Krämer
"High Precise Clock Simulation Included in the Modular Software Simulator for Navigation Systems NavSim"
Proceedings of the European Telemetry Conference (ETC 2000), pp. 322-331, Garmisch-Partenkirchen, Germany, May 22-25, 2000
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E. Engler et. al.
"Capability of the SW simulation system developed by the DLR in the project NavSim"
Proceedings of the European Telemetry Conference (ETC 2000), pp. 304-313, Garmisch-Partenkirchen, Germany, May 22-25, 2000
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Y. Shmaliy, A. Marienko, A. Savchuk, J. Hahn, R. Krämer
"Three-Dimensional Optimal Kalman Filter for Time Error, Frequency, and Aging Estimates"
14th European Frequency and Time Forum (EFTF'2000), Torino, Italy, 14-16 March, 2000
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T. Udem, J. Reichert, R. Holzwarth, T. Hänsch, R. Krämer, J. Hahn, J. Hammesfahr
"On the Behaviour of Atomic Clocks during the 1999 Solar Eclipse over Central Europe"
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T. Udem, J. Reichert, R. Holzwarth, T. Hänsch, R. Krämer, J. Hahn, J. Hammesfahr
"Atomic clocks during the 1999 solar eclipse"
Zeitschrift Nature 16.12.1999, pp.749-750
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A. Steingaß, P. Robertson, M. Angermann, J. Selva, J. Furthner, J. Hahn, A. Hornbostel, R. Krämer, H.P. Müller,
E. Engler, T. Noack, S. Schlüter
"Modular end-to-end software simulator for navigation systems"
3rd European Symposium on Global Navigation Satellite Systems (GNSS'99), pp. 385-391, Genova, Italy, 5-8 October, 1999
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Lara Schmidt, Steven Hutsell, Rainer Krämer
"Ionospheric Delay Estimation and its Effect on Time Transfer via GPS"
Proceeding ION GPS'99, Nashville Tennessee, September 14-17, 1999
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Otmar Loffeld, Rainer Krämer
"Phase Unwrapping for SAR Interferometry - A Data Fusion Approach by
Kalman Filtering"
IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99), Hamburg, Germany, 28 June - 2 July, 1999
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Rainer Krämer, Jörg Hahn, Lara Schmidt
"Results in GPS system time restitution with Kalman filters"
Proceedings of the 1999 Joint Meeting of the European Frequency and Time Forum and the IEEE International Frequency
Control Symposium, pp. 255-258, Besancon, France, April 13-16, 1999, IEEE Catalog No. 99CH36313
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D. Kosmann, M. Zink, O. Loffeld, S. Gebhardt, M. Keil, R. Krämer, A. Roth
"Endbericht zum Forschungsvorhaben: Radar Amplitude,
Phase and Interferometric Detection - RAPID", 1998
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Rainer Krämer, Otmar Loffeld
"Berechnung der eindeutigen Phase aus gestörten Interferogrammen"
Berichtskolloquium im DFG-Schwerpunkt "Automatische Sichtprüfung technischer Objekte", Bremen, 12. Januar, 1998
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Rainer Krämer, Otmar Loffeld
"New results in calculating the unambiguous phase for SAR interferometry"
Sensor, Sensor Systems, and Sensor Data Processing, Munich, Germany, June 16-20, 1997, Proceedings of SPIE Vol. 3100,
pp. 166-174, ISSN 0277-786X, ISBN 0-81942520-6
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Rainer Krämer, Otmar Loffeld
"Presentation of an improved Phase Unwrapping Algorithm based on Kalman filters combined with local slope
estimation"
Proceedings of the 'FRINGE 96' Workshop on Application of ERS SAR Interferometry, University of Zurich,
30.09.1996 - 02.10.1996, ESA SP-406, ESA Publications Division, ESTEL Noordwijk, The Netherlands, March 1997,
ISBN 92-9092-307-5
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Otmar Loffeld, Rainer Krämer
"Local Slope Estimation and Kalman Filtering"
Proceeding PIERS'96, University of Innsbruck, Austria, July 8-12, 1996
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Rainer Krämer, Otmar Loffeld
"Phase Unwrapping by a combination of Local Slope Estimation and Kalman Filtering"
DLR Workshop: Phase Unwrapping for SAR Interferometry, Oberpfaffenhofen, Germany, 28.06.1996
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Otmar Loffeld, Rainer Krämer
"Local Slope Estimation and Kalman Filtering"
DLR Workshop: Phase Unwrapping for SAR Interferometry, Oberpfaffenhofen, 28.06.1996
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Rainer Krämer, Otmar Loffeld
"A Novel Procedure for Cutline Detection"
International Journal of Electronics and Communications (AEÜ), Vol. 50, No. 2, pp. 112-116, Hirzel Verlag,
Stuttgart, Germany, March 1996, ISSN 0001-1096
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Rainer Krämer, Otmar Loffeld
"A Novel Procedure for Cutline Detection"
Proceeding EUSAR'96, pp. 253-256, Königswinter, Germany, March 26-28, 1996, ISBN 3-8007-2162-7,
VDE Verlag GmbH Berlin und Offenbach
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Rainer Krämer, Otmar Loffeld
"Phase Unwrapping for SAR Interferometry with Kalman Filters"
Proceeding EUSAR'96, pp. 165-169, Königswinter, Germany, March 26-28, 1996, ISBN 3-8007-2162-7,
VDE Verlag GmbH Berlin und Offenbach
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Otmar Loffeld, Rainer Krämer
"Phase Unwrapping for SAR Interferometry"
Proceeding IGARSS'94, pp. 2282-2284, Pasadena, California USA, August 8-12, 1994
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