PENINA AXELRAD Associate Professor S.B. 1985, M.S. 1986, Massachusetts Institute of Technology Ph.D. 1991, Stanford University. Office: Engineering Center, Aerospace Engineering wing 159 (ECAE 159) Phone: (303) 492-6872, (303) 492-8035 (lab) Email: axelrad@colorado.edu

Current Research

Research Interests:

• Research is focused on Global Positioning Systems (GPS)
• Applications for spacecraft orbit and attitude determination, on-board estimation and control
• GPS signal processing, including multi-path mitigation techniques, astrodynamics, and estimation.

Other Links (opens in new window):

• Personal Home Page
• CCAR GNSS Research Group
• GPS Technology Lab Home Page

Professional Experience

2007-Present, Acting Chair, Aerospace Engineering, University of Colorado

2005-2007, Associate Chair, Aerospace Engineering, University of Colorado

2005-Present, Professor, Aerospace Engineering, University of Colorado

1999-2005, Associate Professor, Aerospace Engineering, University of Colorado

1992-1999, Assistant Professor, Aerospace Engineering, University of Colorado

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)         

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)

Associate Fellow, American Institute of Aeronautics and Astronautics (1999)

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.

Publications (recent)

Komjathy, A., M. Armatys, D. Masters, P. Axelrad, V.U. Zavorotny and S.J. Katzberg, “Retrieval of Ocean Surface Wind Speed and Wind

Direction Using Reflected GPS Signals,” Journal of Atmospheric and Oceanic Technology, Vol.21, No.3, p. 515-526, March 2004.

Mickler, D., G.H. Born, and P. Axelrad “Using GPS Reflections for Satellite Remote Sensing,” Acta Astronautica, Vol. 55:1, p. 39-49, 2004.

Masters, D., P. Axelrad, and S. Katzberg, “Initial Results of Land-Reflected GPS Bistatic Radar Soil Moisture Measurements in SMEX02,”

Remote Sensing of Environment, Vol. 92:4 p. 507-520, 2004.

Choi, K., A. Bilich, K.M. Larson, and, P. Axelrad, “Modified Sidereal Filtering: Implications for High-Rate GPS Positioning,” Geophys. Res.

Lett., Vol. 31, No. 22, 2004.

Weiss, J.P., S. Anderson, and P. Axelrad, “Development of Multipath Error Budgets for JPALS Ground Station Receivers,” Navigation:

Journal of the Institute of Navigation, Vol. 52, No. 3, p. 145-154, 2005.

Lane, C., P. Axelrad, “Formation Design in Eccentric Orbits Using Linearized Equations of Relative Motion,” Journal of Guidance, Control,

and Dynamics, Vol. 29, No. 1, p. 146-160, 2006.

This page was last updated on Tuesday, October 09, 2007 . Please send comments to wwwadmin@ccar.colorado.edu.