ResearchResearch Projects
Finished Research projects

Finished Research Projects

Terrestrial Gravimetry

  • SIMULTAN: Integriertes Geodätisches Überwachungskonzept für Erdfall-induzierte Oberflächendeformation und Massenumlagerung - AP 3.2 (absolute/relative Gravimetrie und Nivellement)
    Prozessorientierte Interpretation unter Nutzung geophysikalischer und geologischer Informationen und Entwicklung eines langfristigen Überwachungskonzeptes durch Anwendung eines iterativen, rückkoppelnden Optimierungsansatz.
    Leaders: Dr.-Ing. Ludger Timmen
    Team: Dr. Adelheid Weise (LIAG und LUH)
    Year: 2015
    Sponsors: BMBF - Bundesministerium für Bildung und Forschung
  • Improved compensation of vibrational noise in the laser interferometer with applications in absolute gravimetry
    Leaders: Dr. Sergiy Svitlov
    Year: 2011
    Sponsors: DFG
    Lifespan: 2011 - 2018
  • Fennoskandische Landhebung
    Ein Test- und Anwendungsgebiet für GRACE
    Leaders: Prof. Dr.-Ing. Jürgen Müller, Dr.-Ing. Ludger Timmen, Dr.-Ing. Heiner Denker
    Team: Dr.-Ing. Olga Gitlein
    Year: 2003
    Sponsors: Deutsche Forschungsgemeinschaft (DFG)
    Lifespan: 15.3.2003 bis 28.2.2009
  • Einrichtung von absolutgravimetrischen Punkten auf der Zugspitze, auf dem Wank und und in Garmisch-Partenkirchen
    Alpenstationen zur Messung der Erdschwerebeschleunigung mit dem Absolutgravimeter FG5-220
    Leaders: Dr.-Ing. Ludger Timmen
    Team: Dipl.-Ing. Olga Gitlein
    Year: 2003
  • Absolutschwerestationen in Kollafjordur auf den Färöer Inseln
    Absolutschweremessungen auf Färöer
    Leaders: Dr.-Ing. Ludger Timmen
    Team: Dr.-Ing. Olga Gitlein
    Year: 2003
  • Absolute gravimetry in Denmark
    Leaders: Dr.-Ing. Ludger Timmen
    Team: Dipl.-Ing. Olga Gitlein
    Year: 2003

Gravity Field and Geoid Modelling

  • German Combined Geoid 2016 (GCG2016)
    Leaders: Dr.-Ing. Heiner Denker
    Team: Dr.-Ing. Heiner Denker
    Year: 2016
  • Regional gravity field modeling & relativistic geodesy (CRC 1128, C04)
    Leaders: Dr.-Ing. Heiner Denker
    Team: Dr.-Ing. Miao Lin
    Year: 2014
    Sponsors: Deutsche Forschungsgemeinschaft (DFG)
    Lifespan: 01.07.2014 – 30.06.2018
  • International Timescales with Optical Clocks (ITOC) /Researcher Excellence Grant (REG) „Gravity Potential for Optical Clock Comparisons“
    Leaders: Dr. Helen S. Margolis, Dr.-Ing. Heiner Denker
    Team: Dr.-Ing. Heiner Denker, Dr.-Ing. Ludger Timmen, Dr.-Ing. Christian Voigt
    Year: 2013
    Sponsors: European Metrology Research Programme (EMRP), jointly funded by the EMRP participating countries within EURAMET and the European Union
    Lifespan: 01.07.2013 – 31.03.2016
  • REaldatenAnaLyse GOCE (REAL GOCE)
    Teilprojekt GOCE Cal/Val, Quasigeoid und Höhensystem in Deutschland
    Leaders: Dr.-Ing. Heiner Denker, Prof. Dr.-Ing. Jürgen Müller (IfE-Anteil WP310)
    Team: Dr.-Ing. Phillip Brieden, Dr.-Ing. Focke Jarecki, Dr.-Ing. Christian Voigt, Dr.-Ing. Karen Insa Wolf
    Year: 2009
    Sponsors: Sonderprogramm GEOTECHNOLOGIEN, gefördert vom Bundesministerium für Bildung und Forschung (BMBF) und der Deutsche Forschungsgemeinschaft (DFG), Förderkennz. 03G0726C
    Lifespan: 01.06.2009 – 31.05.2012
  • Deutsches kombiniertes Quasigeoidmodell GCG05
    Berechnung eines neuen hochauflösenden Quasigeoidmodells für Deutschland mit cm-Genauigkeit.
    Leaders: Dr.-Ing. Heiner Denker
    Team: Dr.-Ing. Heiner Denker
    Year: 2006
  • Europäisches Schwere- und Geoidprojekt (EGGP) der Internationalen Assoziation für Geodäsie
    Leaders: Dr.-Ing. Heiner Denker
    Team: Dr.-Ing. Heiner Denker
    Year: 2005
    Sponsors: IAG International Association of Geodesy
  • GOCE-GRavitationsfeldANalyse Deutschland – GOCE-GRAND II WP220 – Regionales Validierungs- und Kombinationsexperiment
    Within the framework of the project, high-quality validated terrestrial gravity field data sets (in particular deflections of the vertical and gravity data) were generated in Germany and Europe for the external validation of GOCE products. These data were used for the validation of existing satellite gravity models on the one hand and for the calculation of corresponding combined quasigeoid solutions for Germany and Europe on the other hand.
    Leaders: Dr.-Ing. Heiner Denker (WP220 - IfE)
    Team: Dr.-Ing. Christian Voigt
    Year: 2005
    Sponsors: Research and development programme GEOTECHNOLOGIEN, funded by the Federal Ministry of Education and Research (BMBF) and the German Research Foundation (DFG), Förderkennz. 03F0421D
    Lifespan: 01.09.2005 – 31.08.2008
  • Fennoskandische Landhebung
    Ein Test- und Anwendungsgebiet für GRACE
    Leaders: Prof. Dr.-Ing. Jürgen Müller, Dr.-Ing. Ludger Timmen, Dr.-Ing. Heiner Denker
    Team: Dr.-Ing. Olga Gitlein
    Year: 2003
    Sponsors: Deutsche Forschungsgemeinschaft (DFG)
    Lifespan: 15.3.2003 bis 28.2.2009
  • Europäisches Geoidmodell EGG97
    Leaders: Dr.-Ing. Heiner Denker
    Team: Dr.-Ing. Heiner Denker
    Year: 2003
    Sponsors: Deutsche Forschungsgemeinschaft (DFG)
  • Kombination von CHAMP- und regionalen terrestrischen Schwerefelddaten
    Evaluierung und optimalen Kombination verschiedener Schwerefelddatensätze in Europa.
    Leaders: Dr.-Ing. Heiner Denker, Prof. Dr.-Ing. Günter Seeber
    Team: Dr.-Ing. Markus Roland
    Year: 2001
    Sponsors: Deutsche Forschungsgemeinschaft (DFG)
    Lifespan: 01.05.2001 – 30.04.2004

Relativistic Geodesy

  • Transportable optical clock for relativistic geodesy (CRC 1128/2, A03)
    Leaders: Priv.-Doz. Dr. Christian Lisdat, Prof. Dr. Piet O. Schmidt, Dr.-Ing. Heiner Denker
    Team: Coworker of the Physikalisch-Technischen Bundesanstalt (PTB)
    Year: 2018
    Sponsors: German Research Foundation (DFG)
    Lifespan: 01.07.2018 – 30.06.2019
  • Clock network modeling (CRC 1128, C03)
    Leaders: Prof. Dr. Jürgen Müller, Prof. Dr. Claus Lämmerzahl
    Team: Dr.-Ing. Hu Wu
    Year: 2014
    Sponsors: DFG

Satellite Gravimetry

  • European Gravity Service for Improved Emergency Management (EGSIEM)
    Massenänderungen, abgeleitet aus der Mission GRACE (Gravity Recovery And Climate Experiment), liefern grundlegende Einblicke in den globalen Wasserkreislauf der Erde. Änderungen in der kontinentalen Wasser-speicherung steuern den regionalen Wasserhaushalt und können in Extremfällen zu Überschwemmungen und Dürren führen. Das Ziel von EGSIEM ist, den Wasserkreislauf der Erde aus dem Weltall mit hoher zeitlicher und räumlicher Auflösung zu beobachten und vorherzusagen.
    Leaders: Prof. Dr.-Ing. Jakob Flury
    Team: Dr.-Ing. Akbar Shabanloui
    Year: 2015
    Sponsors: European Commission (EC)
    Lifespan: 2015-2017
  • Data analysis challenge for the GRACE-FO community (CRC 1128, B04)
    Leaders: Dr.-Ing. Majid Naeimi, Dr. Martin Hewitson, Dr. Meike List
    Team: Dr. Neda Darbeheshti
    Year: 2015
    Sponsors: DFG
  • Fusion of ranging, accelerometry, and attitude sensing in the multi-sensor system for laserinterferometric inter-satellite ranging (CRC 1128, B02)
    The quality of gravity field results obtained from GRACE and GRACE Follow-On inter-satellite ranging does not only depend on the ranging measurement accuracy. Equally important is the quality of the integration in the multi-sensor system consisting of inter-satellite ranging, GNSS orbit tracking, accelerometry, and attitude sensing, and the performance of this system as a whole. The system performance is influenced, e.g., by star camera attitude performance, by the characteristics of satellite pointing jitter coupling, by inaccurate knowledge and instabilities of phase centers and alignments, and by accelerometer signal disturbances.
    Leaders: Prof. Jakob Flury, Dr. Gerhard Heinzel
    Team: M.Sc. Santoshkumar Burla, Henry Wegener, Dr. Akbar Shabanloui
    Year: 2014
    Sponsors: DFG
    Lifespan: 2014-2018
  • High performance satellite formation flight simulator (CRC 1128, B05)
    Leaders: Dr. Meike List (ZARM), Dr.-Ing. Benny Rievers (ZARM)
    Team: M.Sc. Guy Apelbaum, Dr. Takahiro Kato , Florian Wöske, Dr. Sergiy Svitlov, Dr. rer. nat. Ertan Göklü, Stefanie Bremer
    Year: 2014
    Sponsors: DFG
  • System studies for an optical gradiometer mission (CRC 1128, B07)
    Leaders: Dr. Gerhard Heinzel, Prof. Dr.-Ing. habil. Jürgen Müller
    Team: Dr. Karim Douch, Brigitte Kaune, Dr. Akbar Shabanloui
    Year: 2014
    Sponsors: DFG
  • Massenveränderungen in Sibirischen Permafrost abgeleitet aus GRACE und Satellitenbildern
    Leaders: Prof. Dr.-Ing. Jürgen Müller
    Team: Dr.-Ing. Sibylle Vey
    Year: 2011
  • Zukunftskonzepte für Schwerefeldsatellitenmissionen
    Leaders: Prof. Dr.-Ing. habil. Jürgen Müller
    Team: Dipl.-Ing. Phillip Brieden
    Year: 2011
    Sponsors: BMBF
  • GOCE-GRAND II im BMBF-Geotechnologien-Programm
    Eröffnung neuer Anwendungsfelder in der Geodäsie und in vielen Nachbardisziplinen durch verbesserte Schwerefeldbestimmung.
    Leaders: Prof. Dr.-Ing. Jürgen Müller
    Team: Dipl.-Ing. Karen. I. Wolf, Dipl.-Ing. Focke Jarecki
    Year: 2009
    Sponsors: Bundesministerium für Bildung und Forschung (BMBF) und Deutsche Forschungsgemeinschaft (DFG)
  • REaldatenAnaLyse GOCE (REAL GOCE)
    WP210 – Qualitätsbeurteilung gemessener GOCE-Gradienten (Q-GGG)
    Leaders: Dr.-Ing. Heiner Denker, Prof. Dr.-Ing. Jürgen Müller
    Team: Dr.-Ing. Phillip Brieden, Dr.-Ing. Focke Jarecki, Dr.-Ing. Christian Voigt, Dr.-Ing. Karen Insa Wolf
    Year: 2009
    Sponsors: Sonderprogramm GEOTECHNOLOGIEN, gefördert vom Bundesministerium für Bildung und Forschung (BMBF) und der Deutsche Forschungsgemeinschaft (DFG), Förderkennz. 03G0726C
    Lifespan: 01.06.2009 – 31.05.2012
  • GOCE-GRavitationsfeldANalyse Deutschland – GOCE-GRAND AP6 – Bestimmung äußerer Eichfaktoren und Validierung der Ergebnisse
    The project investigated methods for calibration and validation of GOCE results with external gravity field data.
    Leaders: Prof. Dr.-Ing. Reiner Rummel
    Team: Dr.-Ing. Heiner Denker, Dr.-Ing. Focke Jarecki, Prof. Dr.-Ing. Jürgen Müller, Dr.-Ing. Karen Insa Wolf
    Year: 2002
    Sponsors: Research and development programme GEOTECHNOLOGIEN, funded by the Federal Ministry of Education and Research (BMBF) and the German Research Foundation (DFG)
    Lifespan: 01.01.2002 – 31.12.2004

Antenna Calibration

  • Verbesserte Positionierung und Navigation durch konsistente Multi-GNSS Antennenkorrekturen
    Investigation of effects of code phase delays (GDV) on the GNSS-based positioning and navigation as well as the development of a method for an adequate comparison of different calibration results.
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dipl.-Ing. Tobias Kersten
    Year: 2012
    Sponsors: BMWI | 50NA1216
  • Von der Komponentenkalibrierung zur Systemanalyse: konsistente Korrekturverfahren von Instrumentenfehlern für Multi-GNSS
    Mehrwert durch Betrachtung des Gesamtsystems
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Tobias Kersten
    Year: 2009
    Sponsors: BMWI und Deutsches Zentrum für Luft und Raumfahrt (DLR) - 50NA0903
    Lifespan: 2009-2012
  • Kalibrierung stationsspezifischer Effekte in GPS Referenzstationsnetzen
    Deterministisches Korrekturmodell für Mehrwegefehler an GNSS Referenzstationen im Land Niedersachsen.
    Leaders: Prof. Dr.-Ing. Günter Seeber
    Team: Dipl.-Ing. Florian Dilssner
    Year: 2008
    Sponsors: Landesamt für Geoinformation und Landentwicklung Niedersachsen (LGLN)
  • Kalibrierung der GPS Antenne für den Radarsatelliten TanDEM-X (DLR)
    Kalibrierung von LEO GNSS Antennen für präzise LEO-Formationen
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Prof. Dr.-Ing. Steffen Schön
    Year: 2008

GNSS and Inertial Navigation

  • Kinematic GNSS positioning of Low Earth Orbiters (CRC 1128, B03)
    Strengthening the accuracy of kinematic orbits of Low Earth Orbiters through an adopted Precise Point Positioning (PPP) enhanced by GNSS Receiver Clock Modeling and the concept of a Virtual Receiver is the overall objective of this project.
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: M.Sc. Christoph Wallat
    Year: 2016
    Sponsors: DFG
  • SIMULTAN: Integriertes Geodätisches Überwachungskonzept für Erdfall-induzierte Oberflächendeformation und Massenumlagerung - AP 3.1 (GNSS)
    Prozessorientierte Interpretation unter Nutzung geophysikalischer und geologischer Informationen und Entwicklung eines langfristigen Überwachungskonzeptes durch Anwendung eines iterativen, rückkoppelnden Optimierungsansatz.
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dr.-Ing. Tobias Kersten
    Year: 2015
    Sponsors: BMBF - Bundesministerium für Bildung und Forschung
    Lifespan: 2015-2019
  • High-Rate GNSS-Empfänger in der Flug-Navigation und -Gravimetrie
    Entwicklung einer Methodik zur Datenvorverarbeitung und zur Geschwindigkeits- und Beschleunigungsschätzung aus Trägerphasenmessungen mit hoher Abtastrate (100Hz)
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: M.Sc. Christian Bischof
    Year: 2014
    Sponsors: Bürgernahes Flugzeug Nachwuchsfond
  • Precise Point Positioning mit GPS-Einfrequenz-Empfängern und der Radom-Antenne in Raisting für das Autonome Fahren (PPP-AF)
    Teilprojekt: Bestimmung von Empfänger-Biases
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dr.-Ing. Tobias Kersten
    Year: 2014
    Sponsors: BMWi und DLR
    Lifespan: 2014-2015
  • VeNaDU: Verbesserte Positionierung und Navigation durch Uhrmodellierung
    In diesem Forschungsvorhaben sollen empfängerseitig die Vorteile moderner hochstabiler Atomuhren für die GNSS-basierte Positionierung und Navigation untersucht und innovative Konzepte zur Uhrmodellierung entwickelt werden.
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: M.Sc. Thomas Krawinkel
    Year: 2013
    Sponsors: BMWi / DLR
    Lifespan: 10/2013 - 11/2016
  • Turbulence investigations and improved modelling of atmospheric refraction with VLBI and GNSS
    Improved characterization of refractivity fluctuations, determination of turbulence parameters and enhanced modelling of neutrospheric refraction effects
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dipl.-Ing. Franziska Kube
    Year: 2012
    Sponsors: DFG (SCHO 1314/3-1)
  • Bürgernahes Flugzeug
    Improvement of quality and decrease of signal loss during GNSS-based curved landing approaches as part of the development of a "Metropolitain Aircraft".
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dipl.-Ing. Franziska Kube
    Year: 2011
    Sponsors: Government of Lower Saxony
  • Navigation und Positionierung in difficult enviornments
    Analyse of High-Sensitivity GNSS Sensors
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dipl.-Ing. Olaf Bielenberg
    Year: 2011
  • Modelling physical correlation of GNSS phase observations by means of turbulence theory
    Modelling of physikal Correlations on GNSS Phase Observables using the Approach of turbulence theory
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dr.-Ing. Markus Vennebusch
    Year: 2011
    Sponsors: DFG (SCHO 1314/1-1).
  • Modeling and correction of GNSS multipath effect through Software receiver and Ray tracing
    Describing Multipath by Software receiver and Ray tracing.
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: M.Sc. Marios Smyrnaios
    Year: 2011
    Sponsors: BMWI and German Aerospace Center (DLR)
  • Qualitätssicherung für permanente GNSS-Stationen
    Qualitätsmanagement an permanenten GNSS Referenzstationen in Niedersachsen.
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dipl.-Ing. Nico Lindenthal
    Year: 2010
    Sponsors: Landesamt für Geoinformationen und Landentwicklung Niedersachsen (LGLN)
  • Konzepte zur Qualitätsbeschreibung in aktiven GNSS-Referenzstationsnetzen
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dipl.-Ing. Nico Lindenthal
    Year: 2009
    Sponsors: Landesamt für Geoinformationen und Landentwicklung Niedersachsen (LGLN)
  • Kalibrierung der GPS Antenne für den Radarsatelliten TanDEM-X (DLR)
    Kalibrierung von LEO GNSS Antennen für präzise LEO-Formationen
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Prof. Dr.-Ing. Steffen Schön
    Year: 2008
  • Investigations of distance dependent systematic effects
    Correction models for distance dependent effects in small GPS networks
    Leaders: Dr.-Ing. Steffen Schön
    Team: Dr.-Ing. Steffen Schön
    Year: 2006
  • Assessment of remaining systematic effects by interval mathematics
    Assessment of remaining systematic effects by interval mathematics
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Year: 2006
    Sponsors: Deutsche Forschungsgemeinschaft (DFG)

Lunar Laser Ranging (LLR)

Geodetic Astronomy

  • Nutzung eines operationellen transportablen hochpräzisen digitalen Zenitkamerasystems für die hochauflösende Bestimmung und Validierung von physikalischen Höhenbezugsflächen
    Hochauflösende Bestimmung und Validierung von physikalischen Höhenbezugsflächen.
    Leaders: Prof. Dr.-Ing. Günter Seeber
    Team: Dipl.-Ing. Christain Hirt
    Year: 2011
    Sponsors: Deutsche Forschungsgemeinschaft (DFG)
  • Entwicklung und Erprobung einer hochgenauen, echtzeitfähigen, transportablen digitalen Zenitkamera für die Lotrichtungsbestimmung
    Leaders: Prof. Dr.-Ing. Günter Seeber
    Team: Dipl.-Ing. Christian Hirt
    Year: 2004
    Sponsors: Deutsche Forschungsgemeinschaft (DFG)
    Lifespan: 2001-2004

CRC 1128 (geo-Q)

  • Transportable optical clock for relativistic geodesy (CRC 1128/2, A03)
    Leaders: Priv.-Doz. Dr. Christian Lisdat, Prof. Dr. Piet O. Schmidt, Dr.-Ing. Heiner Denker
    Team: Coworker of the Physikalisch-Technischen Bundesanstalt (PTB)
    Year: 2018
    Sponsors: German Research Foundation (DFG)
    Lifespan: 01.07.2018 – 30.06.2019
  • Kinematic GNSS positioning of Low Earth Orbiters (CRC 1128, B03)
    Strengthening the accuracy of kinematic orbits of Low Earth Orbiters through an adopted Precise Point Positioning (PPP) enhanced by GNSS Receiver Clock Modeling and the concept of a Virtual Receiver is the overall objective of this project.
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: M.Sc. Christoph Wallat
    Year: 2016
    Sponsors: DFG
  • Data analysis challenge for the GRACE-FO community (CRC 1128, B04)
    Leaders: Dr.-Ing. Majid Naeimi, Dr. Martin Hewitson, Dr. Meike List
    Team: Dr. Neda Darbeheshti
    Year: 2015
    Sponsors: DFG
  • Relativistic effects in satellite constellations (CRC 1128, C02)
    Leaders: Dr.-Ing. habil. Enrico Mai, Dr. Eva Hackmann (ZARM), Prof. Dr. Claus Lämmerzahl (ZARM)
    Team: Dr.-Ing. Liliane Biskupek, PD Dr. Volker Perlick (ZARM), Dennis Philipp (ZARM)
    Year: 2014
    Sponsors: DFG
  • Disentangling gravitational signals and errors in global gravity field parameter estimation from satellite observations (SFB 1128, C01)
    Range-rate residuals from the estimation of global gravity field parameters from GRACE satellite-to-satellite tracking reveal a range of systematic effects that limit the accuracy of the estimated parameters. The project investigated the characteristics of time series of range-rate residuals. It addressed how drops in the K-band ranging signal-to-noise ratio at specific inter-satellite Doppler frequencies propagate to anomalies in range-rate residuals, as well as anomalies during penumbra transitions. A part of the project at TU Graz, in the group of Prof. Mayer-Gürr, studied options to use wavelet parameters in the SST gravity field parameter estimation.
    Leaders: Prof. Jakob Flury
    Team: M.Sc. Saniya Behzadpour
    Year: 2014
    Sponsors: DFG
    Lifespan: 2014-2018
  • Clock network modeling (CRC 1128, C03)
    Leaders: Prof. Dr. Jürgen Müller, Prof. Dr. Claus Lämmerzahl
    Team: Dr.-Ing. Hu Wu
    Year: 2014
    Sponsors: DFG
  • Fusion of ranging, accelerometry, and attitude sensing in the multi-sensor system for laserinterferometric inter-satellite ranging (CRC 1128, B02)
    The quality of gravity field results obtained from GRACE and GRACE Follow-On inter-satellite ranging does not only depend on the ranging measurement accuracy. Equally important is the quality of the integration in the multi-sensor system consisting of inter-satellite ranging, GNSS orbit tracking, accelerometry, and attitude sensing, and the performance of this system as a whole. The system performance is influenced, e.g., by star camera attitude performance, by the characteristics of satellite pointing jitter coupling, by inaccurate knowledge and instabilities of phase centers and alignments, and by accelerometer signal disturbances.
    Leaders: Prof. Jakob Flury, Dr. Gerhard Heinzel
    Team: M.Sc. Santoshkumar Burla, Henry Wegener, Dr. Akbar Shabanloui
    Year: 2014
    Sponsors: DFG
    Lifespan: 2014-2018
  • High performance satellite formation flight simulator (CRC 1128, B05)
    Leaders: Dr. Meike List (ZARM), Dr.-Ing. Benny Rievers (ZARM)
    Team: M.Sc. Guy Apelbaum, Dr. Takahiro Kato , Florian Wöske, Dr. Sergiy Svitlov, Dr. rer. nat. Ertan Göklü, Stefanie Bremer
    Year: 2014
    Sponsors: DFG
  • Regional gravity field modeling & relativistic geodesy (CRC 1128, C04)
    Leaders: Dr.-Ing. Heiner Denker
    Team: Dr.-Ing. Miao Lin
    Year: 2014
    Sponsors: Deutsche Forschungsgemeinschaft (DFG)
    Lifespan: 01.07.2014 – 30.06.2018
  • Modeling of mass variations down to small scales (CRC 1128, C05)
    Leaders: Prof. Dr.-Ing. habil. Jürgen Müller
    Team: Dr.-Ing. Balaji Devaraju, M.Sc. Lars Leßmann
    Year: 2014
    Sponsors: DFG
  • System studies for an optical gradiometer mission (CRC 1128, B07)
    Leaders: Dr. Gerhard Heinzel, Prof. Dr.-Ing. habil. Jürgen Müller
    Team: Dr. Karim Douch, Brigitte Kaune, Dr. Akbar Shabanloui
    Year: 2014
    Sponsors: DFG
  • Transportable quantum gravimeter (CRC 1128, A01)
    Leaders: Prof. Dr. Jürgen Müller, Prof. Dr. Ernst M. Rasel
    Team: Maral Sahelgozin
    Year: 2014
    Sponsors: DFG

QUEST

  • Satellite Navigation using high precise Oscillators
    Examination of high precise Oscillators in the application area of Satellite Navigation
    Leaders: Prof. Dr.-Ing. Steffen Schön
    Team: Dipl.-Ing. Ulrich Weinbach
    Year: 2011
    Sponsors: QUEST
  • Potential Field Determination and high precise Oscillators
    Determination of the Earth's Gravity Field using high precise Oscillators
    Leaders: Prof. Dr.-Ing. habil. Jürgen Müller
    Team: Dr.-Ing. habil. Enrico Mai
    Year: 2011
    Sponsors: QUEST (Quantum Engineering and Space Time Research)
  • Highly physical penumbra solar radiation pressure modeling with atmospheric effects
    During penumbra transitions of an Earth orbiter, the solar radiation hitting the satellite is strongly influenced by refraction and absorption of light rays grazing the Earth’s atmosphere. The project implemented solar radiation pressure modeling including these effects. Model results were tested by comparing with measurements of the accelerometers of the GRACE low Earth orbiters.
    Leaders: Prof. Jakob Flury, Tamara Bandikova
    Team: Robbie Robertson (Virginia Tech, Blacksburg, VA)
    Year: 2010
    Sponsors: RISE/QUEST
    Lifespan: 2010
  • Verfeinerte Modellierung des Erde-Mond-Systems im mm-Bereich zur Bestimmung relativistischer Größen
    Leaders: Prof. Dr.-Ing. habil. Jürgen Müller
    Team: Dipl.-Ing. Franz Hofmann
    Year: 2009
    Sponsors: QUEST
  • In-Orbit System Analysis of the Gravity Recovery and Climate Experiment (GRACE) Mission
    Precise determination and control of satellite attitude plays a key role for satellite geodesy in general, and for Satellite-to-Satellite Tracking in particular. The project provided the first in-depth characterization of GRACE pointing biases and pointing variations. Investigations addressed star camera inter-boresight angle variations, the weighted camera sensor head combination, as well as error propagation to inter-satellite ranging and accelerometer observations. Results led to significant improvements in the operational GRACE data processing.
    Leaders: Prof. Jakob Flury
    Team: Tamara Bandikova
    Year: 2009
    Sponsors: Exzellenzcluster QUEST
    Lifespan: 2009-2015
    © IfE / Bandikova