Method for calibrating the gyros of a 3-axis stabilized satellit

Details Method for calibrating the gyros of a 3-axis stabilized satellit Method for calibrating the gyros of a 3-axis stabilized satellit

1988-10-14

1989-12-05

Barefoot, Galen L.

Aeronautics and astronautics

Spacecraft

Attitude control

244171, 73 1E, B64G 128

Patent

active

048847712

ABSTRACT:
This method serves for calibrating gyros forming part of the attitude control system of a satellite stabilized in three axes and which have an unknown drift. A two-axis sensor measuring the direction of a radiating reference object in the coordinate system x, y, z fixed with respect to the satellite is used. Two reference attitudes each different with respect to the reference object are commanded to the satellite in the course of two consecutive time intervals spaced from each other. The values measured by the sensor representing the respective actual direction of the reference object are recorded at the start and at the end of the time intervals. The respective time integrals of the gyro output signals are computed during the time intervals, which represent the gyro drift plus the respective instantaneous satellite deviation from the commanded reference attitude. Finally the gyro drift is determined from these time integrals and the values measured by the sensor.

REFERENCES:
patent: 3731521 (1973-05-01), Solov et al.
patent: 3782167 (1974-01-01), Stuelpnagel

Affiliated with

Also associated with

Rating

Method for calibrating the gyros of a 3-axis stabilized satellit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for calibrating the gyros of a 3-axis stabilized satellit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for calibrating the gyros of a 3-axis stabilized satellit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2030011