A Goddard Space Flight Center Greenbelt, MD 20771 Abstract This paper presents an algorithm for estimating the angular rate vector of a satellite which is based on the time derivatives of …
In this lter, the attitude , angular rate !, and gyro bias are estimated. This paper extends a Farrenkopf-type analysis to this formulation, and presents a method to assess when it is …
Reference 4 presents a nonlinear estimator for reconstructing the angular rate of a spacecraft without rate gyros. The angular rate estimator structure is similar to a Kalman filter. The …
Precise angular-rate is required for attitude determination, and a coarse rate is needed for attitude control damping. Classically, angular-rate information is obtained from gyro measurement.
ANGULAR VELOCITY ESTIMATE AND LINEAR COVARIANCE ANALYSIS Using the estimated matrix ˆα −→ ˆA, the components of ω and � ω can be obtained. To do this, a transformation …
mics and the angular rotational rate is assumed to satisfy a known upper bound. We present a nonlinear observer design which utilizes he measurements from the RIG and provides …
Gyroless attitude and angular rate estimation has been a prime concern for small inexpensive spacecraft that do not carry gyroscopes but still require rate information for attitude …