NASA SBIR 2007 Solicitation


PROPOSAL NUMBER: 07-1 O1.03-9524
SUBTOPIC TITLE: Communication for Space-Based Range
PROPOSAL TITLE: GPS Attitude Determination for Launch Vehicles

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Toyon Research Corporation
6800 Cortona Drive
Goleta, CA 93117 - 3021
(805) 968-6787

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Kenan O. Ezal
6800 Cortona Drive
Goleta, CA 93117 - 3021
(805) 968-6787

Expected Technology Readiness Level (TRL) upon completion of contract: 4

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Toyon Research Corporation proposes to develop a family of compact, low-cost GPS-based attitude (GPS/A) sensors for launch vehicles. In order to obtain 3-D attitude measurements (roll, pitch, and yaw) conventional GPS/A systems require three or more antennas with relatively large baselines (~0.5 m). In sharp contrast, Toyon's GPS/A system can obtain 3-D attitude measurements with one or more single-aperture antennas. Toyon's GPS/A sensor is dubbed the Miniature Integrated Direction-finding Attitude-determining Anti-jam System (MIDAAS(TM)) and employs an innovative single-aperture antenna to compute full 3-D attitude using only two RF channels, leading to a smaller, simpler, lower-cost receiver system. A single (gyro-less) MIDAAS unit can be used to provide attitude information on very small launch platforms. In addition, multiple (gyro-less) MIDAAS units can be employed over larger baselines for increased attitude accuracy. A single (< 6.5-cm diameter) MIDAAS system also provides tactical-grade attitude performance when coupled with commercial-grade gyros at a significantly lower cost. Furthermore, MIDAAS provides active anti-jam protection and multipath mitigation thereby improving the integrity and robustness of the navigation system.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
MIDAAS provides drift-free and temperature-insensitive GPS-based attitude (GPS/A) measurements for small expendable launch vehicles and micro-satellites in a small package and at a lower cost than array-based GPS attitude systems. Furthermore, a multi-antenna MIDAAS system will provide improved accuracy when compared to traditional GPS/A systems with equivalent baselines. In addition, integration of one or more MIDAAS systems with inertial measurement units (IMUs) will provide significant improvements in performance at a significantly lower cost when compared to conventional GPS-based attitude systems with equivalent grade IMUs.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The MIDAAS GPS-based attitude (GPS/A) sensor technology is applicable to a wide range of military and civilian applications including unmanned aerial vehicles (UAVs), micro air vehicles (MAVs), unattended ground sensors (UGS), handheld positioning units, recreational/virtual reality orienting devices, radio-controlled (RC) vehicles, ground vehicles, and far-target locators. The technology appeals to customers who desire robust position and attitude measurements for platforms that have stringent cost and size, weight and power (SWAP) constraints.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Attitude Determination and Control
Guidance, Navigation, and Control
Telemetry, Tracking and Control

Form Generated on 09-18-07 17:50