单光栅式干涉选择调幅光谱仪的仪器函数曲线变迹和切趾

Apodization of the Instrumental Function Curve of SISAM with a Single Grating

在作者提出的单光杨式干涉选择调幅光谱仪中，采用矩形、椭圆、梯形、余弦形、菱形、高斯形、反椭圆光阑，从理论上求出相应的仪器函数及相应的仪器分辨率，可以实现仪器函数曲线的变迹和切趾．求出的理论分辨率分别为光栅分辨率的１．３５２１、１．１９３２、１．０７７７、１．０４４６、０．９９３５、０．７９９３、０．７１５９倍．

n the SISAM with a single grating put forward by authors, rectangle、elliptical、ladder-shaped、cosine-shaped、rhombus、 Gauss-shaped、reverse elliptical diaphragms are adopted ,corre-sponding theoretical instrumental functions and theoretical instrumental resolutions can be calcu-lated. The apodization of the instrumental function curve can be achieved. The theoretical instru-mental resolutions are 1. 3521、1.1932、1. 0777、1. 0446、0.9935、0. 7993、.7159 times as much asthe grating resolution R.