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ACCOMPLISHMENTS

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  1. Small Business Innovation Research Spacecraft Formation Control withDirect Interferometer-Output Feedback Optimal Synthesis Inc. Los Altos CA   Control Actuation • INNOVATION • Maintains spacecraft and interferometer-component formation in interferometry mission by exploiting its primary scientific product. Uses these measurements as a form of real-scene wavefront sensing to infer the control error towards a formation-control solution. ACCOMPLISHMENTS • Formulated control problem for interferometer concepts with multiple pairs of apertures. • Developed spatial-domain and frequency-domain processing techniques to estimate interferometer control errors. • Verified feasibility of technical approach by testing estimation and control solutions with interferometer simulation in fast-prototyping environment. COMMERCIALIZATION • Phase II collaboration with specific space interferometer mission will enhance technology readiness for NASA to consider adoption for deployment. • Separate funding will be sought from DoD to transfer technology to space-based reconnaissance/surveillance. • Potential in medical and industrial applications will be explored. Interferometer Output Enhancement Parameter Assessment Interferometer Control • GOVERNMENT/SCIENCE APPLICATIONS • Space science applications to enable space interferometer missions for imaging celestial bodies and phenomena • Earth and planetary sciences to enable orbiting interferometers to map and collect geo-spatial data • NASA and DoD as customers • Space-based reconnaissance and surveillance • Synthetic-aperture-radar (SAR) interferometry Goddard Space Flight Center Points of Contact: NASA – Jesse Leitner (301) 286-2630 Optimal Synthesis Inc. -Victor Cheng (650) 210-8282 2001 Phase I, SS5-064