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Smoothing-Based Relative Navigation and Coded Aperture ImagingThis project will develop an efficient smoothing software for incremental estimation of the relative poses and velocities between multiple, small spacecraft in a formation, and a small, long range depth sensor based on coded aperture imaging that is capable of identifying other spacecraft in the formation. The smoothing algorithm will obtain the maximum a posteriori estimate of the relative poses between the spacecraft by using all available sensor information in the spacecraft formation.This algorithm will be portable between different satellite platforms that possess different sensor suites and computational capabilities, and will be adaptable in the case that one or more satellites in the formation become inoperable. It will obtain a solution that will approach an exact solution, as opposed to one with linearization approximation that is typical of filtering algorithms. Thus, the algorithms developed and demonstrated as part of this program will enhance the applicability of small spacecraft to multi-platform operations, such as precisely aligned constellations and fractionated satellite systems.
Document ID
20170011079
Acquisition Source
Ames Research Center
Document Type
Other - Brief Communication/Note
Authors
Saenz-Otero, Alvar
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Liebe, Carl Christian
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hunter, Roger C.
(NASA Ames Research Center Moffett Field, CA, United States)
Baker, Christopher
(NASA Headquarters Washington, DC United States)
Date Acquired
November 14, 2017
Publication Date
August 7, 2017
Subject Category
Engineering (General)
Report/Patent Number
NASA FS-2017-03-03-ARC
ARC-E-DAA-TN45663
Funding Number(s)
CONTRACT_GRANT: NNX16AT66A
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Relative positioning
small spacecraft
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