Two-Stage Controller Algorithm for Multi-Spacecraft Interferometric Imaging Systems
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In this article a method to calculate near fuel optimal trajectories for imaging missions using multi-spacecraft interferometric imaging systems (MSIIS) is described. The trajectories are calculated using an algorithm that calculates near-minimum fuel solutions subject to near-Earth orbit dynamics, taking into account that the relative distance between target and formation is varying during the time of the imaging maneuver. The algorithm extends previous works where a two-stage algorithm was used to find near-minimum solutions for the optimal fuel problem under Clohessy-Wiltshire equations of motion in a geostationary configuration. The algorithm consists of a higher level nonlinear programming problem, and a low-level linear quadratic tracker that solves for near-minimum trajectories and calculates the dynamics and fuel requirements for this type of maneuver. As application of this methodology, different cases where it could be applied are simulated. 2010 IEEE.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
author list (cited authors)
Ramirez, J., & Chakravorty, S.
complete list of authors
Ramirez, Jaime||Chakravorty, Suman