Method and apparatus for limiting attitude drift during turns
First Claim
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1. An apparatus for outputting roll angle information comprising:
- an input for receiving a signal indicative of roll rate;
a first device, coupled to said input, for obtaining an Euler roll angle from said signal;
a first error correction device, coupled to said first device, for correcting errors in said Euler roll angle;
a second error correction device, coupled to said first error correction device, for supplying a roll angle estimate to said first error correction device, during a period of time when said Euler roll angle exceeds a predefined limit; and
an output for outputting a signal indicative of corrected roll angle information.
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Abstract
An apparatus, method and computer program product useful for supplying the pilot of an aircraft with aircraft attitude information. During bank angles exceeding a predefined limit, the roll gyro is slaved to a roll angle estimator for improved system accuracy.
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Citations
5 Claims
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1. An apparatus for outputting roll angle information comprising:
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an input for receiving a signal indicative of roll rate;
a first device, coupled to said input, for obtaining an Euler roll angle from said signal;
a first error correction device, coupled to said first device, for correcting errors in said Euler roll angle;
a second error correction device, coupled to said first error correction device, for supplying a roll angle estimate to said first error correction device, during a period of time when said Euler roll angle exceeds a predefined limit; and
an output for outputting a signal indicative of corrected roll angle information. - View Dependent Claims (2, 3, 4, 5)
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Specification