Lindsay Millard, AAE Grad Student, wins Best Paper Award at the AAS/AIAA astrodynamics conference
| Event Date: | September 24, 2007 |
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The School of Aeronautics would like to recognize Lindsay Millard for the hard work and technical accomplishment that lead to her receipt of the Best Paper Award at the AAS/AIAA astrodynamics conference. The School and Purdue University are proud of this achievement.
Millard, L., and Howell, K., "Control of Interferometric Spacecraft Arrays for (u,v) Plane Coverage in Multi-Body Regimes," AAS/AIAA SpaceFlight Mechanics Meeting, Sedona, Arizona, January 2007.
CONTROL OF INTERFEROMETRIC SPACECRAFT ARRAYS FOR
(u, v) PLANE COVERAGE IN MULTI-BODY REGIMES
Lindsay D. Millard and Kathleen C. Howell
ABSTRACT
Libration point orbits may be advantageous locations for spacecraft imaging formations. Therefore, control of these arrays in multi-body regimes is critical. Ideally, the motion of spacecraft within an imaging array minimizes fuel usage while maximizing resolution of a distant object in some mission-specified frequency band. Maximizing image resolution implies adequate coverage of the (u, v) plane in a specified observation time. In the current work, an optimization problem to minimize fuel usage while maximizing an image metric is formulated in the circular restricted three-body problem (CR3BP). Optimization is simplified by subdividing the task into two distinct smaller problems: imaging optimization and fuel optimization. Then, these problems are solved separately. Image reconstruction and coverage of the (u, v) plane are simulated for interferometric spacecraft configurations, demonstrating potential applications of the algorithm and the resulting motion.