激光技术2011，Vol.35Issue(6)：804-807,4.DOI:10.3969/j.issn.1001-3806.2011.06.022
基于FPGA的傅里叶变换光谱仪光谱复原技术
Spectrum recovery of Fourier transform spectrometer based on FPGA
摘要
Abstract
In order to obtain the real-time spectrum distribution information of such as chemical warfare, atmospheric pollutants by Fourier transform spectrometer, a data processing system, which can realize the single sideband interference fringes collection and spectrum recovery, was designed based on field programmable gate array(FPGA). In the system, apodization, fast Fourier transform( FFT) , and phase correction was integrated in a FPGA chip with the advantages of high integration, high speed and low cost. The XC2VP30 chip of Xilinx' s corporation was used to design the data processing module hardware circuit. Then the data collected by WQF-520 Fourier transform infrared spectrometer was transferred to FPGA for processing. Comparing the FPGA results with Matlab simulation results, the difference is within 1. 2%. The results show that the system can recover spectrum correctly and is suitable for the interferometric spectrometer system of time modulation and space modulation.关键词
光谱学/干涉条纹/频谱复原/现场可编程门阵列Key words
spectroscopy/ interference fringes/ spectrum recovery/ field programmable gate array分类
数理科学引用本文复制引用
郝健,张记龙,崔丹凤,景宁..基于FPGA的傅里叶变换光谱仪光谱复原技术[J].激光技术,2011,35(6):804-807,4.基金项目
国家自然科学基金资助项目(61040062) （61040062）
科技部国际合作计划资助项目(2010DFR10520) （2010DFR10520）
山西省国际科技合作计划资助项目(2010081038) （2010081038）
