量子电子学报2013，Vol.30Issue(2)：231-235,5.DOI:10.3969/j.issn.1007-5461.2013.02.017
激光吸收光谱自适应滤波处理算法研究
Investigation of adaptive filtering algorithm for laser absorption spectroscopy
摘要
Abstract
An adaptive filtering algorithm for laser absorption spectroscopy was investigated. An improved measuring system scheme of laser absorption spectroscopy was proposed. Light beam emitted from laser was divided into three beams which constructed measurement channel, calibration channel and reference channel, respectively. Data acquisition circuit acquired signal data from three channels. Data from calibration channel was used for wavelength locking and concentration calibration. Signal data from reference channel contained noise associated with the measurement channel. Based on this, an adaptive noise canceller was constructed to reduce the effects of noise on measurement channel and improve the accuracy of the gas concentration inversion.关键词
光谱学/可调谐半导体吸收光谱学/自适应滤波/气体探测Key words
spectroscopy/ tunable diode laser absorption spectroscopy/ adaptive filter/ gas sensing分类
数理科学引用本文复制引用
赵海培..激光吸收光谱自适应滤波处理算法研究[J].量子电子学报,2013,30(2):231-235,5.基金项目
中石化重大装备国产化项目(W09019)资助 （W09019）
