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An Affordable Rugged Inertial-Based Navigation System for Highly Accurate…

Award Information

Department of Defense
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Impact Technologies, LLC
NY Rochester, NY 14623-2893
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2011
Title: An Affordable Rugged Inertial-Based Navigation System for Highly Accurate Position and Attitude Estimation Without the Use of GPS
Agency: DOD
Contract: N00167-11-P-0118
Award Amount: $79,927.00


Impact Technologies, in collaboration with the Rochester Institute of Technology, Virginia Tech and the Boeing Company, proposes to develop and demonstrate a rugged, GPS-independent, miniature, low-power and light-weight device that provides highly accurate position and attitude measurements for USV operations in harsh marine environments encompassing highly dynamic maneuvers and vibrational effects. In contrast to the conventional GPS-dependent devices, our device implements an Unscented Kalman Filter-based three-dimensional position and attitude estimator that makes use of low-cost sensors such as accelerometers and rate gyros. The key innovation is to identify the local gravitational position in real-time and use it to bound sensor drift errors to achieve highly accurate state estimation. The objective is achieved by a unique hardware design that combines a dual-arc accelerometer array with three-axis rate gyros and optional heading sensors. High vibration effects are estimated and eliminated by subtracting the imposed loading from the accelerometer measurements to provide a highly robust system. Preliminary simulation studies have demonstrated a position estimation accuracy that exceeds Navy"s requirements (<0.5 nmi/hr drift rate). While Phase I will focus on proof-of-concept software-in-the-loop demonstration, a hardware prototype will be fabricated, tested on Virginia Tech"s USV platform and delivered to Navy in Phase II.

Principal Investigator:

Liang Tang
Team Lead, Intelligent Co
(585) 424-1990

Business Contact:

Mark Redding
(585) 424-1990
Small Business Information at Submission:

Impact Technologies, LLC
200 Canal View Blvd Rochester, NY -

EIN/Tax ID: 161567136
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No