ACCOMPLISHMENTS
2
Spacecraft Formation Control with Direct Interferometer-Output Feedback Optimal Synthesis Inc. Los Altos CA 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. Small Business Innovation Research 2001 Phase I, SS5-064 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 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. Points of Contact: NASA – Jesse Leitner (301) 286-2630 Optimal Synthesis Inc. -Victor Cheng (650) -200 -150 -100 -50 0 50 100 150 200 -200 -150 -100 -50 0 50 100 150 200 0 5 10 15 20 25 30 -2 -1 0 1 2 3 4 5 Tim e S teps Orientation E rrors (deg) 0 deg 60 deg 120 deg Interferometer Output Enhancement Parameter Assessment Interferometer Control Control Actuation
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S mall B usiness I nnovation R esearch. Spacecraft Formation Control with Direct Interferometer-Output Feedback Optimal Synthesis Inc. Los Altos CA . Control Actuation. INNOVATION - PowerPoint PPT Presentation
Transcript of ACCOMPLISHMENTS
Spacecraft Formation Control withDirect Interferometer-Output Feedback
Optimal Synthesis Inc. Los Altos CA
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.
SmallBusinessInnovationResearch
2001 Phase I, SS5-064
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
INNOVATIONMaintains 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.
Points of Contact:NASA – Jesse Leitner (301) 286-2630Optimal Synthesis Inc. -Victor Cheng (650) 210-8282
-200 -150 -100 -50 0 50 100 150 200
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0 5 10 15 20 25 30-2
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Time Steps
Orie
ntat
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0 deg60 deg120 deg
InterferometerOutput Enhancement
ParameterAssessment
InterferometerControl
ControlActuation
0 5 10 15 20 25 30-2
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0
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Time Steps
Orie
ntat
ion
Err
ors
(deg
)
0 deg60 deg120 deg
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