gyro error

[′jī·rō ‚er·ər]

(navigation)

The error in the reading of the gyro compass, expressed in degrees east or west to indicate the direction in which the axis of the compass is offset from the north.

References in periodicals archive ?

The gyro error angular rate [delta]w is assumed as the difference between the estimated and actual angular rate: [delta]w = w - [??].

Finite-horizon robust kalman filter for uncertain attitude estimation system with star sensor measurement delays

Gyro Errors Accelerometer Errors Bias Instability ([??]/hr) Bias Instability (m/[s.sup.2]) Angle Random Walk ([??]/[??]hr) Velocity Random Walk (m/s/[??]hr) Scale Factor & Non-Linearity ([??]/hr) Scale Factor & Non-Linearity (m/[s.sup.2]) Axis Orthogonality ([??]) Axis Orthogonality ([??]) These errors always need to be considered, however, additional errors can also be important such as the sensitivity of the gyro to linear acceleration, and the accelerometer bias sensitivity to vibration.

Sensors for Navigation in Autonomous Vehicles--The Importance of IMU Technology: One of the greatest challenges for advancing autonomous vehicle technology is accurately positioning the vehicle on the road. Inertial measurement unit sensors may be the key to getting past this roadblock

It can be seen that the heading accuracy is largely affected by the east gyro errors. We have known that the Earth rate is about 15[degrees]/h; for the low cost gyros, it cannot align itself because the noise levels are near or higher than the Earth rate.

A Fast SINS Initial Alignment Method Based on RTS Forward and Backward Resolution

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