Abstract This paper describes the application of the Least Mean Square (LMS) algorithm in tandem with the Filtered-X Least Mean Square algorithm for controlling a science instrument’s line-of-sight pointing. Pointing error is caused by a periodic disturbance and spacecraft vibration. A least mean square algorithm is used on-orbit to produce the transfer function between the instrument’s servo-mechanism and error sensor. The result is a set of adaptive transversal filter weights tuned to the transfer function. The Filtered-X LMS algorithm, which is an extension of the LMS, tunes a set of transversal filter weights to the transfer function between the disturbance source and the servo-mechanism’s actuation signal. The servo-mechanism’s resulting actuation counters the disturbance response and thus maintains accurate science instrumental pointing. A simulation model of the Upper Atmosphere Research Satellite is used to demonstrate the algorithms.
Application of Least Mean Square Algorithms to Spacecraft Vibration Compensation
1998
Article (Journal)
English
Application of Least Mean Square Algorithms to Spacecraft Vibration Compensation
Springer Verlag | 1998
|TECHNICAL NOTE - Application of Least Mean Square Algorithms to Spacecraft Vibration Compensation
Online Contents | 1998
|British Library Conference Proceedings | 1995
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