Jam-Resistant Global Positioning System/Inertial Navigation System (GPS/INS) Deeply-Coupled Navigation System Navy SBIR FY2013.2 Sol No.: Navy SBIR FY2013.2 Topic No.: N132-094 Topic Title: Jam-Resistant Global Positioning System/Inertial Navigation System (GPS/INS) Deeply-Coupled Navigation System Proposal No.: N132-094-0876 Firm: Systems & Technology Research 400 West Cummings Park, Suite 5850 Woburn, Massachusetts 01801 Contact: Joel Douglas Phone: (781) 503-3285 Web Site: www.STResearch.com Abstract: U.S. military transport vehicles, operating platforms, aircraft, and weapons rely upon GPS to provide position, velocity, and timing data and as an aid to the Inertial Navigation System (INS) to reduce the effects of long-term inertial sensor drift and bias. However, the use of GPS jammers as a counter-measure to block the reception of the GPS signal is relatively simple and inexpensive. Deep integration of GPS and INS offers an opportunity to improve robustness to jamming over traditional GPS/INS loose and tight coupling architectures. In the deeply coupled architecture, GPS systems use the navigation Kalman Filter to replace the GPS receiver tracking loops to greatly reduce the carrier tracking bandwidth, resulting in improved anti-jam performance. Under the Phase 1 effort, we will design, develop, and demonstrate a proof-of-concept for a deeply-coupled GPS/INS configuration, and analyze the performance against multiple scenarios. Our system will achieve high performance using a MEMS IMU, be designed to work with antenna elements that provide both nulling and/or beam-forming capability, and enable fusion with other aiding sensors, enabling improved tracking performance. This will lead directly to the Phase 2 work in which we will integrate the software with a hardware-in-the loop simulation and perform live testing. Benefits: The navigation system developed under this effort has direct application to not only military users, but also to commercial applications. Commercial air travel has increased its reliance upon GPS as a source for position, velocity and time (PVT) and to aid the on-board inertial navigation system and flight avionics sensors. In addition to intentional jamming, there is also unintentional jamming from nearby AM/FM transmitters, interference from solar radiation, and self-jamming concerns due to on-board transmitters. The navigation unit developed under this SBIR topic can directly address these challenges. Return