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
Abstract:
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.
Small Business Information at Submission:
Impact Technologies, LLC
200 Canal View Blvd Rochester, NY -
EIN/Tax ID:
161567136
DUNS:
N/A
Number of Employees:
Woman-Owned:
No
Minority-Owned:
No
HUBZone-Owned:
No