A design of small signal detection in infrared spectrometer with dual channel structure is presented.The jamming caused by the fluctuation of the light source as well as the shift of optical intensity modulating frequency are barraged.The SNR of the detection system is improved.
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施秧,刘辉军,吕进.双通道红外光谱微弱信号检测系统设计[J].激光与红外,2007,37(11):1192~1194 SHI Yang, LIU Hui-jun, Lǖ Jin. Design of Dual Channel Small Signal Detection in Infrared Spectrometer[J]. LASER & INFRARED,2007,37(11):1192~1194