傅里叶变换实时红外光谱复原的FPGA实现

王香云

王香云. 傅里叶变换实时红外光谱复原的FPGA实现[J]. 应用光学, 2013, 34(3): 447-451.
引用本文: 王香云. 傅里叶变换实时红外光谱复原的FPGA实现[J]. 应用光学, 2013, 34(3): 447-451.
shu
WANG Xiang-yun. Implement of Fourier transform in real-time infrared spectrum recovery based on FPGA[J]. Journal of Applied Optics, 2013, 34(3): 447-451.
Citation: WANG Xiang-yun. Implement of Fourier transform in real-time infrared spectrum recovery based on FPGA[J]. Journal of Applied Optics, 2013, 34(3): 447-451.
shu

傅里叶变换实时红外光谱复原的FPGA实现

  • 山西大学 工程学院,山西 太原 030013

详细信息
    通讯作者:

    王香云(1979-),女,山西怀仁人,讲师,主要从事计算机仿真及嵌入式工作。 Email:wangxiangyun12@163.com

  • 中图分类号: TN247

Implement of Fourier transform in real-time infrared spectrum recovery based on FPGA

  • College of Engineering,Shanxi University,Taiyuan 030013,China

摘要

    摘要
  • 摘要: 为实时获取战场激光、大气污染物气体、毒气等待测物光谱信息的光谱复原，设计了基于现场可编程门阵列(FPGA) 的实时光谱采集分析系统。该系统选用迈克尔逊干涉具和碲镉汞探测器获取待测光谱信息，将采集到的数据传入FPGA。利用硬件描述语言VerilogHDL在Xilinx FPGA芯片上依据傅里叶变换(FFT)实现干涉条纹到光谱数据的实时处理。实验结果表明，FPGA实际计算1 024点基2-FFT频谱分布信息与Matlab理论计算结果相同，可满足实时光谱探测的要求。
    Abstract: In order to obtain the real-time spectrum recovery of spectrum information such as battlefield laser, atmospheric pollutants gases, poisonous gas, etc. the real-time spectrum acquisition and analysis system based on FPGA was designed. The spectral information was abtained by using a Michelson interferometer and HgCdTe detector, and the collected date was transmitted to FPGA. Using hardware language Verilog HDL on the chip of Xilinx FPGA, the system achieved real-time processing of the spectrum data from interference pattern based on FFT. The simulation result indicates that the spectrum distribution information calculated by 1 024-point radix 2-FFT with FPGA is the same as the theoretical calculation result of Matlab, which can meet the requirement for real-time spectral detection.
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  • ［1］田二明，张记龙,李晓.激光告警系统中小型静态傅里叶变换光谱仪的研究［J］. 光谱学与光谱分析,2009, 29(3): 853-857.
        TIAN Er-ming, ZHANG Ji-long, LI Xiao. Study on miniature static Fourier transform spectrometer used in laser warning receiver［J］. Spectroscopy and Spectral Analysis, 2009, 29(3): 853-857. (in Chinese with an English abstract)
    ［2］殷世民,相里斌,周锦松,等.基于 FPGA 的干涉式成像光谱仪实时数据处理系统研究［J］.红外与毫米波学报,2007,26(4):274-278.
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    ［3］李苏宁,朱日宏,李建欣,等.傅里叶干涉成像光谱技术中的重构方法［J］.应用光学,2009,30(2):267-272.
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     LIU Hui-zhi, ZHANG Ji-long, ZHANG Hui,et al. Implement of fast Fourier transform in real-time spectral detection based on FPGA［J］.Infrared, 2009,30(11):1-6. (in Chinese with an English abstract)
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    ［9］付林,刘辉志.基于FPGA的静态傅里叶变换光谱探测系统研究［J］.半导体光电,2011,32(2):287-291.
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    ［10］王彩玲,李玉山,刘学成,等.基于相位相关性的傅里叶变换光谱数据的相位误差修正方法［J］.应用光学,2011,32(5):878-882.
     WANG Cai-ling, LI Yu-shan, LIU Xue-cheng, et al. Phase error correction in Fourier transform spectrometer based on phase correlatin［J］. Journal of Applied Optics,2011,32(5):878-882. (in Chinese with an English abstract)
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出版历程
  • 刊出日期:  2013-05-14

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