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A SYSTEM FOR REDUCING SPACECRAFT INSTRUMENT POINTING ERRORS CAUSED BY INSTUMENT-MOTION-INDUCED SPACECRAFT MOTION
A SYSTEM FOR REDUCING SPACECRAFT INSTRUMENT POINTING ERRORS CAUSED BY INSTUMENT-MOTION-INDUCED SPACECRAFT MOTION
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机译：减少因运动引起的航天器运动引起的航天器仪表点误差的系统
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摘要
pA closed loop system reduces pointing errors in one or more spacecraft instruments. Associated with each instrument is a means (3) for commanding motion in that instrument and a pointing control system (5) for imparting motion in that instrument in response to a command (4) from the commanding means (3). Spacecraft motion compensation logic (25) compensates for instrument pointing errors caused by instrument-motion-induced spacecraft motion. Any finite number of instruments can be so compensated, by providing each pointing control system (5) and each commanding means (3), for the instruments desired to be compensated, with a link to the spacecraft motion compensation logic (25). The spacecraft motion compensation logic (25) is an electronic manifestation of the algebraic negative of a model of the dynamics of motion of the spacecraft. An example of a suitable model, and computer-simulated results, are presented./p[WO8702145A1]
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