干涉型红外光谱仪的光谱复原  

THE RECOVERY OF SPECTRUM IN INTERFEROMETRIC INFRARED SPECTROMETER

作　　者：李正直[1] 倪振宇[1] 

机构地区：[1]杭州大学物理系,浙江杭州310028

出　　处：《红外研究》1990年第3期221-227,共7页

基　　金：浙江省自然科学基金

摘　　要：利用希尔伯特-史密特定理解积分方程能得到高分辨率复原光谱。当光谱分布波数范围较大时,将其分为几个小区域,适当选取参数,可大大减小计算点数(～41);当反射率随波长改变时用修正的希尔伯特-史密特定理能进一步减少计算机时间和容量。Using the theory of Hilbert and Sehmidt, the spectrum is recovered with a high resolution from an integral equation representing the relation between the spectral distribution and its multiple-beam interferogram. The number of calculating points becomes small (～41)by dividing the larger wavenumber into several smaller ones and choosing appropriate parameters. The results also show that after a modification of the theory of Hilbert and Schmidt, both the calculating time and the capacity of a computer are further reduced for the case where the roflectivity of the reflecting surfaces varies with wavenumber.

关 键 词：光谱畸变消除 干涉型 红外光谱仪 消卷积 

分 类 号：TN214[电子电信—物理电子学] TH744.1[机械工程—光学工程]