基于周期一致性的空间非合作目标转速测量方法

o solve problem of non-cooperative target speed measurement without markers or prior knowledge, this paper proposes a novel measurement method based on periodic relationship and regular geometry feature. The periodic consistency under the disalignment of target rotation axisand camera optical axis is first deduced. Moreover, the frame difference combined with morphology and Canny algorithmare introducedto exactly extract geometric contourfeature of thenon-cooperative target. Subsequently, the rotation speed can be obtained by fitting image angle sequences of geometric center. The simulated results confirm the effectiveness of proposed method.