2011
DOI: 10.3788/aos201131.1028002
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Influence of Defocusing on Measurement Accuracy of Image Motion of Space Camera

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“…When the spacecraft is in the on-orbit condition, the motion of all movable parts will lead to the jitter of camera lens, thus causing the decline of the image quality. This kind of jitter which cannot be measured and restricted by the control system is defined as Flutter [1] . The inducing element includes a) high-speed rotation of the rotation parts of the spacecraft, b) rotation of scanning mechanism in the payload, c) step motion of the driving mechanism of large controllable components, d) startup of thrusters to adjust stance, e) motion of thermal controlling system, and f) structural disturbance caused by the complicated thermal conditions, etc [2] .…”
Section: Introductionmentioning
confidence: 99%
“…When the spacecraft is in the on-orbit condition, the motion of all movable parts will lead to the jitter of camera lens, thus causing the decline of the image quality. This kind of jitter which cannot be measured and restricted by the control system is defined as Flutter [1] . The inducing element includes a) high-speed rotation of the rotation parts of the spacecraft, b) rotation of scanning mechanism in the payload, c) step motion of the driving mechanism of large controllable components, d) startup of thrusters to adjust stance, e) motion of thermal controlling system, and f) structural disturbance caused by the complicated thermal conditions, etc [2] .…”
Section: Introductionmentioning
confidence: 99%