Biography

Since joining NASA Ames Research Center in 2001, I have enjoyed working in the field of electronic sensors and instrumentation to create novel hardware and software signal processing systems, with a focus on putting advanced research concepts into practice.

Current Projects

2012 - Present. Estimation of safe aircraft maneuverability with uncertain dynamics models.

2008 - Present. Electromagnetic characterization, physics-based modeling, and probabilistic inference for precursor wiring fault detection.

2010-2012. Vehicle Safety Systems Technologies (VSST) Project, Deputy Project Manager for (DPMf) NASA Ames Research Center.

NASA Affiliations

Physics Based Methods Group
Discovery and Systems Health (DaSH)
Intelligent Systems Division
NASA Ames Research Center

Research Interests

• Statistical Signal Processing
• Bayesian Data Analysis
• Convex Optimization
• Applied Math and Physics

Education

M.S. Electrical Engineering, Santa Clara University, 2004
B.S. Electrical Engineering, Santa Clara University, 2001

Publications

Journal Publications

S. Schuet, D. Timucin, K. Wheeler, “A Model-Based Probabilistic Inversion Framework for Wire Fault Detection using TDR,” IEEE Transactions on Instrumentation and Measurement, vol. 60, num. 5, pp 1654-1663, May 2011. [PDF]

S. Schuet, “Wiring Diagnostics via l1-Regularized Least Squares,” Sensors Journal, IEEE, vol.10, no.7, pp.1218-1225, July 2010. [PDF]

Technical Reports

S. Schuet, D. Timucin, and K. Wheeler. Shielded twisted pair cable model for chafe fault detection via time-domain reflectometry. NASA Technical Report NASA/TM-2012-216001, National Aeronautics and Space Administration, March 2012.
[PDF] [NTRS]

Conference Presentations and Papers

D. Timucin, S. Schuet, K. Wheeler, "Detection of chafe faults in shielded-twisted-pair cable," Aircraft Airworthiness and Sustainment Conference, Baltimore MD, April 2-5, 2012

S. Schuet, D. Timucin, K. Wheeler, “Modeling and Detecting Wire Faults,” NASA Aviation Safety Program Annual Technical Meeting, St. Louis MO, May 10-12, 2011.

K. Wheeler, D. Timucin, S. Schuet, “Verification of Small Hole Theory for Application To Wire Chafing Resulting in Shield Faults,” Aircraft Airworthiness and Sustainment Conference, San Diego CA, April 18-21, 2011.

D. Timucin, S. Schuet, K. Wheeler, “Electrical Wire Chafe Fault Detection Analysis,” Aircraft Airworthiness and Sustainment Conference, Austin TX, May 10-13, 2010.

S. Schuet, D. Timucin, K. Wheeler, “A Model-Based Probabilistic Inversion Framework for Wire Fault Detection using TDR,” IEEE International Instrumentation and Measurement Technology Conference, Austin TX, May 3-6, 2010.

S. Schuet, K. Wheeler, D. Timucin, M. Kowalski, P. Wysocki, “Model Based Inference for Wire Chafe Diagnosis,” Presented at the Aging Aircraft Conference, May 4-7, 2009. [PDF]

S. Schuet, K. Wheeler, D. Timucin, “Understanding Wire Chafing: Model Development and Optimal Diagnostics Using TDR,” Aviation Safety Technical Conference, October 23, 2008.

J. Lavelle, S. Schuet, “The 3D mapping of stardust’s post flight heat shield,” 46th AIAA Aerospace Sciences Meeting, Reno NV, January 7-10, 2008.

J. Lavelle, S. Schuet, “A hand held, wireless 3D scanning instrument for shuttle tile inspection,” 5th Topical Meeting on Optoelectronic Distance/Displacement Measurements and Applications (ODIMAP V), IEEE LEOS, pp. 222-227, Madrid, Spain, October 2-4, 2006.

M. Bualat, C. Kunz, J. Lavelle, L. Pedersen, S. Schuet, “Scanning laser rangefinder for accurate arm placement and inspection,” 8th International Symposium on Artificial Intelligence, Robotics and Automation in Space (iSAIRAS), Munich, Germany, 2005.

J. Lavelle, S. Schuet, “High speed 3D scanner with real-time 3D processing,” SPIE 9th International Symposium on NDE for Health Monitoring and Diagnostics, San Diego, California, USA, 2004.

Software

Coming soon.

Patents

2008 United States Patent: 7375826, “High-Speed Three Dimensional Laser Scanner with Real-Time Processing.”

Awards

2010 NASA Group Achievement Award to CEV TPS Advancement Development Project for “outstanding work in support of the CEV Project and for developing the first human-rated ablative heat-shield in 40 years.”

2009 NASA Certificate of Recognition “in appreciation for Federal Laboratory Consortium for Technology Transfer 2009 Interagency Partnership Award: NASA High-Speed 3D Scanner.”

2009 R&D Magazine Top 100 Award for the “NASA High-Speed 3D Scanner.”

2008 NASA Government Invention of the Year Award for the NASA High-Speed 3D Scanner, “the 3D Laser Scanner surface scanning and profiling technology was developed for critical, real time inspection of damage to the thermal protection tiles of space shuttle. It is small, lightweight, and power efficient.”

2008 NASA Ames Certificate of Recognition “for the creative development of exceptional scientific and technical contributions which have been determined to be of significant value in the advancement of the aerospace technology program of NASA.”

2008 Major Space Act Board Award for the 3D Laser Scanner

2007 NASA Ames Honor for Excellence in the Engineer Category Award