A Distributed Guidance And Control System For Satellite Constellations

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$70,000.00
Award Year:
2002
Program:
SBIR
Phase:
Phase I
Contract:
NAS5-02109
Agency Tracking Number:
013489
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Accurate Automation Corporation
7001 Shallowford Road, Chattanooga, TN, 37421
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
James Neidhoefer
Principal Investigator
(423) 894-4646
jneidhoe@accurate-automation.com
Business Contact:
Reba Pap
Business Official
(423) 894-4646
rpap@accurate-automation.com
Research Institution:
n/a
Abstract
Accurate Automation Corporation has developed a distributed adaptive guidance and control architecture for minimum Delta-V formation flying of satellite constellations. The innovation in this approach is that it is an extremely streamlined solution to a very difficult guidance and control problem. The guidance module of the proposed architecture is built around a simulation of a system of particles whose motion is a result of attractive and repulsive forces generated through simulated potential fields. Desirable characteristics of the guidance system are: 1) that a large number of satellites, starting at some initial conditions, can move amongst themselves to some desired final conditions with a guarantee that undesirable interactions between individual satellites will not occur, 2) that the path taken by each individual satellite can be achieved using minimum Delta-V, and 3) that the guidance system is distributed. In order to guarantee stability for the satellite constellation as a whole, we designed a distributed satellite control module with a specifiable convergence rate. This in combination with our ability to specify the convergence rate of the guidance module, allows us to ensure that each satellite will stay within a certain distance of its commanded path (tracking error has a known bound).

* information listed above is at the time of submission.

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