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Focus Area

Astrodynamics & Satellite Navigation

Education

Ph.D., Aeronautics and Astronautics, Stanford University, 1991
S.M., Aeronautical and Astronautical Engineering, M.I.T., 1986
S.B., Aeronautical Engineering (Avionics Option), M.I.T., 1985

Professional Experience

2012-Present, Chair, Department of Aerospace Engineering Sciences, ÀÖ²¥´«Ã½ Boulder
2013-Present, Associate Member, Laboratory for Atmospheric and Space Physics, ÀÖ²¥´«Ã½ Boulder
2005-Present, Professor, Aerospace Engineering, ÀÖ²¥´«Ã½
2007-2008, Acting Chair, Aerospace Engineering, ÀÖ²¥´«Ã½2005-2007, Associate Chair, Aerospace Engineering, ÀÖ²¥´«Ã½
1999-2005, Associate Professor, Aerospace Engineering, ÀÖ²¥´«Ã½
1992-1999, Assistant Professor, Aerospace Engineering, ÀÖ²¥´«Ã½
1991-1992, Lecturer, Department of Aeronautics and Astronautics, Stanford University
1990-1992, Member of the Technical Staff and Program Manager, GPS Systems Organization, Stanford Telecommunications, Inc., Santa Clara, CA

Awards (selected)

Fellow, American Institute of Aeronautics and Astronautics (2008)
Institute of Navigation Outstanding Service Award (2005)
Fellow, Institute of Navigation (2004)
Senior Member, Institute of Electrical and Electronics Engineers (2003)
Institute of Navigation Tycho Brahe Award (2003)
AIAA Lawrence Sperry Award (1996)
Member Sigma Xi and Tau Beta Pi

Research Interests

Global Positioning System (GPS) technology and applications for real-time satellite orbit and attitude determination, GPS surface reflections, GPS multipath characterization and mitigation, orbital dynamics and spacecraft rendezvous