TY - GEN
T1 - Global low-thrust guidance scheme for disaggregated spacecraft architectures
AU - Mazal, L.
AU - Mingotti, G.
AU - Gurfil, P.
PY - 2012
Y1 - 2012
N2 - The main idea of disaggregated satellites is to distribute the functionality of a single monolithic satellite among multiple physically-independent wireless-communicating modules. These new architectures raises the emerging concept of cluster flight, in which the distance between any two modules of the cluster must be kept between prescribed upper and lower thresholds. This work is concerned with strategies to efficiently perform cluster-establishment. The main goal of the establishment is to deploy the modules in such a manner that the necessity of future corrective maneuvers, after the establishment, is reduced as much as possible. To that end, the establishment maneuver steers the cluster to relative initial conditions, which are favorable to avoid distance drifts, as well as enable the payload module, to track a prescribed reference trajectory. A cooperative guidance law, for cluster establishment and re-establishment, is proposed. As the modules are assumed to be equipped with low-thrust chemical (cold-gas) propulsion systems, thrust of type bang-off-bang thrust is considered, as well as perturbations due to the Earth oblateness and drag. Copyright
AB - The main idea of disaggregated satellites is to distribute the functionality of a single monolithic satellite among multiple physically-independent wireless-communicating modules. These new architectures raises the emerging concept of cluster flight, in which the distance between any two modules of the cluster must be kept between prescribed upper and lower thresholds. This work is concerned with strategies to efficiently perform cluster-establishment. The main goal of the establishment is to deploy the modules in such a manner that the necessity of future corrective maneuvers, after the establishment, is reduced as much as possible. To that end, the establishment maneuver steers the cluster to relative initial conditions, which are favorable to avoid distance drifts, as well as enable the payload module, to track a prescribed reference trajectory. A cooperative guidance law, for cluster establishment and re-establishment, is proposed. As the modules are assumed to be equipped with low-thrust chemical (cold-gas) propulsion systems, thrust of type bang-off-bang thrust is considered, as well as perturbations due to the Earth oblateness and drag. Copyright
UR - http://www.scopus.com/inward/record.url?scp=84883536185&partnerID=8YFLogxK
M3 - منشور من مؤتمر
SN - 9781622769797
T3 - Proceedings of the International Astronautical Congress, IAC
SP - 5336
EP - 5346
BT - 63rd International Astronautical Congress 2012, IAC 2012
T2 - 63rd International Astronautical Congress 2012, IAC 2012
Y2 - 1 October 2012 through 5 October 2012
ER -