| 全光纤VISAR系统中条纹常数的分析 |
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| 引用本文： | 聂小燕,刘永智,彭增寿,代志勇,欧中华.全光纤VISAR系统中条纹常数的分析[J].光电子技术与信息,2006,19(1):61-64. |
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| 作者姓名： | 聂小燕 刘永智 彭增寿 代志勇 欧中华 |
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| 作者单位： | 电子科技大学光电信息学院,四川,成都,610054 |
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| 摘 要： | 全光纤VISAR系统具有大的测速范围，其测速的动态范围和条纹常数有关。从干涉光路的实现原理出发，推导出速度与条纹常数的关系式，并分析了FVISAR系统不同速度分档下的条纹常数确定。在保证1．5％精度及假设光源相干长度为1mm的前提下，给出了具体的速度分档情况。
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| 关 键 词： | 全光纤任意反射面速度干涉仪 条纹常数 条纹数 |
| 文章编号： | 1006-1231(2006)01-0061-04 |
| 收稿时间： | 2005-06-16 |
| 修稿时间： | 2005-11-17 |
Analysis of Fringe Constant in the FVISAR System |
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| NIE Xiao-yan,LIU Yong-zhi,PENG Zeng-shou,DAI Zhi-yong,OU Zhong-hua.Analysis of Fringe Constant in the FVISAR System[J].Optoelectronic Technology & Information,2006,19(1):61-64. |
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| Authors: | NIE Xiao-yan LIU Yong-zhi PENG Zeng-shou DAI Zhi-yong OU Zhong-hua |
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| Affiliation: | School of Opto-electronic Information, University of Electronics Science and Technology of China, Chengdu 610054, China |
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| Abstract: | FVISAR system has a high dynamic range of velocity. The range of velocity relates to fringe constant. Basing on the principle of optical circuit interference, the formula between velocity and fringe constant was deduced. The fringe constant varying with different range of velocity was analyzedl corresponding to the low , middle and high range of velocity. Assuming the coherence length is 1 mm, specific ranges of velocity under the precision of 1.5% were presented. |
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| Keywords: | fiber velocity interferometer for any reflector fringe constant fringe number |
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