| FPGA在静态傅里叶变换光谱仪频谱复原中的应用 |
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| 引用本文： | 魏恒,张记龙,王志斌,张敏娟.FPGA在静态傅里叶变换光谱仪频谱复原中的应用[J].压电与声光,2011,33(2). |
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| 作者姓名： | 魏恒 张记龙 王志斌 张敏娟 |
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| 作者单位： | 1. 山西省光电信息与仪器工程技术研究中心,山西太原,030051
2. 山西省光电信息与仪器工程技术研究中心,山西太原030051;中北大学仪器科学与动态测试教育部重点实验室,山西太原030051 |
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| 基金项目： | 科技部国际合作基金，山西省国际合作计划基金，山西省科技攻关基金，山西省科技平台建设基金 |
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| 摘 要： | 针对静态傅里叶变换光谱仪中干涉条纹采集与处理对速度快的特殊要求,设计了用现场可编程门阵列(FPGA)实现干涉图采集和频谱复原系统,CCD采集干涉条纹后进入FPGA进行切趾、傅里叶变换、取模等处理后得到入射光的频谱信息,同时对干涉图切趾函数的选取进行探讨和比较.最后,分别采集中心波长635 nm、650 nm、780 nm、808 nm、850 nm半导体激光器通过楔形干涉具的干涉条纹,并将FPGA中频谱复原结果与Avantes公司的光纤光谱仪测得结果进行比较,误差在2.5%以内.
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| 关 键 词： | 光谱学 干涉条纹 频谱复原 现场可编程门阵列(FPGA) |
Spectrum Recovery of Static Fourier Transform Spectrometer Based on FPGA |
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| WEI Heng,ZHANG Jilong,WANG Zhibin,ZHANG Minjuan.Spectrum Recovery of Static Fourier Transform Spectrometer Based on FPGA[J].Piezoelectrics & Acoustooptics,2011,33(2). |
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| Authors: | WEI Heng ZHANG Jilong WANG Zhibin ZHANG Minjuan |
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| Affiliation: | WEI Heng1,ZHANG Jilong1,2,WANG Zhibin1,ZHANG Minjuan1(1.Engineering Technology Research Center of Shanxi Province for Opto-Electronic Information and Instrument,Taiyuan 030051,Chnia,2.Key Lab.of Instrumentation Science & Dynamic Measurement(North University of China),Ministry of Education,China) |
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| Abstract: | In order to meet the special requirements of fast speed of interference fringes acquisition and processing in static Fourier transform spectrometer,the interference fringes collection and spectrum recovery system using FPGA was designed in this paper.After interference fringes collection by CCD and apodization,Fourier transform,modeling by FPGA,the spectrum of interference fringes were obtained.At the same time,the selection of apodization functions were compared and discussed.Finally,the interference fring... |
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| Keywords: | spectroscopy interference fringes spectrum recovery FPGA |
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