A Collective Detection Based GPS Receiver for Small Satellites

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$124,965.00
Award Year:
2013
Program:
STTR
Phase:
Phase I
Contract:
NNX13CG37P
Award Id:
n/a
Agency Tracking Number:
120199
Solicitation Year:
2012
Solicitation Topic Code:
T8.01
Solicitation Number:
n/a
Small Business Information
MD, Greenbelt, MD, 20770-1405
Hubzone Owned:
N
Minority Owned:
Y
Woman Owned:
N
Duns:
101537046
Principal Investigator:
William Bamford
Principal Investigator
(301) 345-1535
bill.bamford@emergentspace.com
Business Contact:
David Gaylor
Business Official
(303) 656-9035
dave.gaylor@emergentspace.com
Research Institution:
University of Colorado Boulder
Meagan Taylor
3100 Marine Street
Boulder, CO, 80303-80303
() -
Domestic nonprofit research organization
Abstract
To solve the problem of autonomous navigation on small satellite platforms less than 20 kg, we propose to develop an onboard orbit determination receiver for small LEO satellites which lack stable Attitude Determination and Control System (ADCS), continuous GPS coverage, or ground tracking. The system is a refinement of existing spaceborne receiver technology built around a new, innovative collective detection and direct positioning algorithm developed by Dr. Penny Axelrad, a reduced set of GPS hardware, and a compact orbit propagator. The small satellite collective orbit determination receiver (SCOR) brings together efficient reference orbit representations, snapshot GPS sampling, collective detection and direct positioning, and modular orbit propagation methods, to produce an effective new approach for onboard support of small satellites. Since the collective detection algorithm does not require continuous GPS tracking to generate navigation solutions, portions of the receiver can be duty cycled to reduce power consumption between measurements. Additionally, this approach allows for satellites without pointing capabilities to obtain sufficient measurements to generate solutions by taking multiple snapshots when the spacecraft attitude is in a favorable orientation with respect to the GPS constellation.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government