Reconstructing Tethered Satellite Skiprope Motion by Bandpass Filtering Magnetometer Measurements

[+] Author and Article Information
M. E. Polites

Control Systems Division, Structures and Dynamics Laboratory, NASA/Marshall Space Flight Center, AL 35812

J. Dyn. Sys., Meas., Control 114(3), 481-485 (Sep 01, 1992) (5 pages) doi:10.1115/1.2897372 History: Received May 21, 1991; Revised October 01, 1991; Online March 17, 2008


This paper presents a unique scheme for reconstructing tethered satellite skiprope motion by ground processing satellite magnetometer measurements. The measurements are modified based on ground knowledge of the Earth’s magnetic field and passed through bandpass filters tuned to the skiprope frequency. Skiprope motion is then deduced from the steady-state outputs of the filters. Simulation results are presented which verify the scheme and show it to be robust. The concept is not just limited to tethered satellites. Indeed, it can be applied whenever there is a need to reconstruct the coning motion of a body about a known axis, given measurements of a known vector in body-fixed axes.

Copyright © 1992 by The American Society of Mechanical Engineers
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