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US 2009/0288485 A1Published application
High bandwidth inertial measurement unit
AssigneeRosemount Aerospace Inc.
InventorsTodd A. Ell, Robert D. Rutkiewicz
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Abstract
An inertial measurement unit is disclosed which includes a system of gyros for sensing angular rates, a system of accelerometers for sensing angular accelerations, an integrator for deriving gyro-less angular rates from the sensed angular accelerations, and a complimentary filter for blending the sensed angular rates and the gyro-less angular rates to produce a virtual angular rate output for the inertial measurement unit.
Claims20
An inertial measurement unit comprising:
- a) a system of gyros for sensing angular rates;
- b) a system of accelerometers for sensing angular accelerations;
- c) means for deriving gyro-less angular rates from the sensed angular accelerations;
- and
- d) means for blending the sensed angular rates and the gyro-less angular rates to produce a virtual angular rate output for the inertial measurement unit.
2 more elements
A method of inertial measurement comprising the steps of:
- a) sensing angular rates;
- b) sensing angular accelerations;
- c) deriving gyro-less angular rates from the sensed angular accelerations;
- and
- d) blending the sensed angular rates and the gyro-less angular rates to produce a total virtual angular rate output.
2 more elements
Dependencies are inferred from the claim text.