Multi-Axis Doppler Direction Finder System for Relative Position and Attitude Determination

Award Information
Agency:
Department of Defense
Branch
Defense Advanced Research Projects Agency
Amount:
$98,974.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
W31P4Q-08-C-0075
Award Id:
81305
Agency Tracking Number:
07SB2-0549
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
11711 N. Creek Pkwy S., Suite D113, Bothell, WA, 98011
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
877425330
Principal Investigator:
Nestor Voronka
Chief Technologist
(425) 486-0100
voronka@tethers.com
Business Contact:
Robert Hoyt
CEO
(425) 486-0100
hoyt@tethers.com
Research Institute:
n/a
Abstract
The interest in formation and cluster-based satellite applications has grown considerably in recent years, especially as launch costs have dropped and the availability of secondary rides have increased. Unfortunately, the realization of these applications has proven difficult because of challenges such as station keeping and collision avoidance. In this proposed Phase I effort, TUI will demonstrate the performance of a relative attitude and position sensor that uses a unique combination of omni-directional antennas, Doppler direction finding techniques, and a deeply integrated ranging channel. Previous experiments done by TUI indicate that angular accuracy will easily exceed +/- 0.5 degrees while ranging measurements are expected to be at least +/- 10 cm. Because of the short distances typically used in formation-based micro-satellite applications, the power requirements-and hence the mass and volume requirements-will be relatively small. The performance-to-cost ratio of the proposed sensor is also expected to be quite high due to the use of readily available, low power RF components and high-speed digital logic. This will allow easy integration of the sensor into nano and micro-satellite platforms, facilitating the development of clustered spacecraft systems such as formation flying synthetic apertures and fractionated spacecraft architectures.

* information listed above is at the time of submission.

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