| 莫尔条纹非等速运动的等转角处理 |
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| 引用本文： | 赵长海,万秋华,孙莹.莫尔条纹非等速运动的等转角处理[J].微计算机信息,2010(1):12-13,43. |
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| 作者姓名： | 赵长海 万秋华 孙莹 |
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| 作者单位： | [1]中国科学院长春光学精密机械与物理研究所,长春130033 [2]中国科学院研究生院,北京100049 |
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| 摘 要： | 当编码器非匀速运动的时候,所采集到的莫尔条纹信号为非等转角信号,为了对信号进行傅立叶分析,需要将采集到的数据转换为等转角数据。分析了在非等转角的情况下进行傅立叶分析所产生的误差,利用线性插值方法,提出了进行等转角处理的快速计算方法。通过仿真验证该方法能很好的将非等速运动还原为等速运动。
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| 关 键 词： | 莫尔条纹 光电编码器 等转角处理 傅里叶分析 |
The Equiangular Disposal Algorithm of Moire Fringe Signal |
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| ZHAO Chang-hai WAN Qiu-hua SUN Ying.The Equiangular Disposal Algorithm of Moire Fringe Signal[J].Control & Automation,2010(1):12-13,43. |
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| Authors: | ZHAO Chang-hai WAN Qiu-hua SUN Ying |
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| Affiliation: | ZHAO Chang-hai WAN Qiu-hua SUN Ying (Changchun Institute of Optics,Fine Mechanics , Physics,Changchun,130033,China) (Graduate School of the Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | The encoder,when non-uniform movement,the collection to the Moire fringe signals is non-equiangular signals,to carry on the Fourier's analysis to the signal,needs the data conversion to equiangular data.Analyzed in non-equiangular situations has carried on the error which the Fourier's analysis produced,Using the theory of linear interpolation,the equiangular disposal algorithm of moire fringe signal is researched.Confirms this method through the simulation to be able very good to return non-equiangular sig... |
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| Keywords: | Moire fringe Optoelectronic encoder Equiangular disposal Fourier algorithm |
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