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NASA NTRS · 20060043368

Guaranteed initialization of distributed spacecraft formations

Scharf, Daniel P.·Ploen, Scott R.·Hadaegh, Fred Y.·Keim, Jason A.·Phan, Linh H.
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Abstract

In this paper we present a solution to the formation initialization (FI) problem for N distributed spacecraft located in deep space. Our solution to the FI problem is based on a three-stage sky search procedure that reduces the FI problem for N spacecraft to the simpler problem of initializing a set of sub-formations.

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Scharf, Daniel P., Ploen, Scott R., Hadaegh, Fred Y., Keim, Jason A., Phan, Linh H.. 2003-08-01. Guaranteed initialization of distributed spacecraft formations. https://ntrs.nasa.gov/citations/20060043368

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NASA NTRS2004

Guaranteed spatial initialization of distributed spacecraft formations

In a precious paper the authors developed a formation initialization (FI) algorithm for a deep space, N-spacecraft formation. It was demonstrated analytically that this FI contribution of this paper is to extend this planar guarantee to deep space formations with arbitrary initial conditions. As part of the guarantee of initialization, a bound on the time-to-initialize is obtained. The guaranteed FI algorithm is then demonstrated for a two-spacecraft formation with realistic deep space mission constraints (e.g. limited field-of-view relative sensors and attitude constraints). The two-spacecraft scenario is challenging in that it has the least relative sensor field-of-view overlap. Finally, for this scenario, the distribution of time-to-initialize is characterized through a 150,000-case Monte Carlo analysis.

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