A Low-Cost, High-Precision Navigator for Unmanned Aircraft

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$100,000.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
NNX11CD71P
Agency Tracking Number:
104570
Solicitation Year:
2010
Solicitation Topic Code:
S3.09
Solicitation Number:
n/a
Small Business Information
Toyon Research Corporation
CA, Goleta, CA, 93117-3021
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
054672662
Principal Investigator:
Kenan Ezal
Principal Investigator
(805) 968-6787
kezal@toyon.com
Business Contact:
Marcella Lindbery
Business Official
(805) 968-6787
mlindbery@toyon.com
Research Institution:
Stub




Abstract
Toyon Research Corporation proposes to develop a low-cost navigation system for unmanned aerial vehicles (UAVs) that achieves an attitude accuracy of better than 0.1 degrees using commercial-grade gyroscopes and accelerometers. An order of magnitude improvement in navigation performance will be achieved by fusing low-cost inertial sensor measurements with attitude and position measurements from a small-aperture GPS-based attitude (GPS/A) sensor. The Miniature Integrated Direction-finding Attitude-determining Anti-jam System (MIDAAS(TM)) obtains position, velocity, attitude, and time (PVAT) measurements directly from GPS signals. MIDAAS employs an innovative small single-aperture antenna to compute full 3-D attitude (roll, pitch and yaw) using only two RF channels, leading to a smaller, simpler, lower-cost GPS/A receiver system. A stand-alone (gyro-less) MIDAAS unit can also be used to provide attitude information in addition to position and velocity on very small platforms. A unique ultra-tightly coupled (UTC) navigation architecture makes the system inherently more robust to interference and significantly improves the attitude estimate. In addition, MIDAAS provides active anti-jam protection and multipath mitigation thereby further improving the system integrity and robustness. The system performance will be demonstrated during the Phase I effort with data obtained during several flight tests, and will be compared with a higher-accuracy, more expensive GPS/IMU system.

* information listed above is at the time of submission.

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