A Miniature Ultra-Tightly Coupled Software-Defined Navigation (SDN) System with Direction-Finding, Attitude-Determination and Anti-Jam GPS

Award Information
Agency: Department of Defense
Branch: Army
Contract: W15P7T-06-C-M202
Agency Tracking Number: A052-089-1450
Amount: $120,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2005
Solicitation Topic Code: A05-089
Solicitation Number: 2005.2
Small Business Information
Suite A, 75 Aero Camino, Goleta, CA, 93117
DUNS: 054672662
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Kenan Ezal
 Senior Staff Analyist
 (805) 968-6787
Business Contact
 Marcella Lindbery
Title: Director of Contracts
Phone: (805) 968-6787
Email: mlindbery@toyon.com
Research Institution
Toyon Research Corporation proposes to develop a miniature ultra-tightly coupled software-defined navigation (SDN) system that can provide anti-jam (AJ) GPS capability and attitude measurements independent of an inertial measurement unit (IMU). Using a single-aperture 4-cm antenna, the system will provide angle-of-arrival (AoA) measurements for GPS jammers as well as signals outside the GPS band. These AoA measurements can assist emitter localization algorithms that use time-difference-of-arrival (TDOA) and frequency-difference-of-arrival (FDOA) methods, and can be used for threat identification and elimination. The SDN system will also accept a variety of IMU measurements for optimum AJ GPS and ultra-tightly coupled GPS/inertial navigation system (INS) performance. These may include low-cost micro-electro-mechanical systems (MEMS), magnetic compass, magnetometer, altimeter, time-of-arrival (TOA) inputs, and electro-optical (EO)/infrared (IR) sensors. The drift-free GPS-based attitude estimates will augment measurements obtained by low-cost MEMS gyros with large rate biases, thereby improving the overall system performance. Moreover, Toyon has teamed with Analytical Graphics, Inc. (AGI), the developer of the industry standard Navigation Tool Kit (NTK) and Satellite Tool Kit (STK) software to analyze and verify the accuracy of the SDN system and sensor mixture specifically for TDOA and FDOA precision geolocation applications. Furthermore, the SDN module will be developed as open-source software.

* Information listed above is at the time of submission. *

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