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dc.contributor.author齐倩倩
dc.contributor.author陈灿斌
dc.contributor.author徐天哲
dc.contributor.author张武虹
dc.contributor.author陈理想
dc.date.accessioned2018-11-26T08:50:37Z
dc.date.available2018-11-26T08:50:37Z
dc.date.issued2017
dc.identifier.citation厦门大学学报. 自然科学版,2017,(2):220-225
dc.identifier.issn0438-0479
dc.identifier.other10.6043/j.issn.0438-0479.201610016
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/165553
dc.description.abstract为了快速高效地测量对称物体的转速,基于数字螺旋成像理论,提出了一种测量旋转多普勒频移的优选方案.通过在空间光调制器上加载多重对称性物体的旋转光栅; 来模拟旋转物体.实验中通过测量三重对称物体和十重对称物体的反射谱,分析其频谱特性,验证了该方案可以快速高效地得到高信噪比的信号,进而测得转速,且; 测量误差在0. 7%左右.该方法对测量具有多重对称性的物体的转速高效准确,有望应用在遥感技术领域,甚至在天文领域探测天体转速.
dc.description.abstractIn order to quickly and efficiently measure the rotational speed of the; symmetric, we devise an optimal method with high coupling efficiency to; measure the rotational Doppler-frequency shifts by analyzing the orbital; angular momentum of the light scattered from a rotating mask based on; the digital spiral imaging theory. In our experiment, the rotating; object is mimicked by holograms of special symmetry displayed on the; spatial light modulator.The experimental results show that the proposed; scheme can obtain the oribital angular momentum (OAM) spectrums of; clover and ten leaf clover with high signal-to-noise ratio quickly and; efficiently. Compared with the theoretical results,the error in our; experiments is about 0. 7%.Our scheme offers a high-efficiency method of; Doppler-frequency shift measurement,adding the potential for remote; detection of spinning objects.
dc.language.isozh_CN
dc.subject轨道角动量
dc.subject旋转多普勒效应
dc.subject数字螺旋成像理论
dc.subject遥感技术
dc.subjectorbital angular momentum ( OAM)
dc.subjectrotational Doppler-frequency shifts
dc.subjectdigital spiral imaging theory
dc.subjectremote sensing technology
dc.title基于物体对称性实现旋转多普勒效应的优化测量
dc.title.alternativeOptimal Measurement of Rotation Doppler-frequency Shifts Based on Rotational Symmetry
dc.typeArticle


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