为了保证成像测量结果的相对准确性,需要消除光谱仪中光学器件的偏振响应,加入消偏器是一种常用的消偏方法。由于成像光谱仪探测性能的要求,不仅需要消偏器在光谱仪的响应波段内具有良好的消偏效果,还要求消偏器应尽可能小地影响光谱仪的成像质量;对大气遥感探测星载双楔角临边成像光谱仪中的消偏器进行研究,通过积分的方式对消偏器的楔角进行计算分析,通过MATLAB的优化仿真确定了影响消偏器性能的参数,并对其进行了相关的误差分析。

In order to ensure the relative accuracy of measurement results of the imaging spectrometer, we must eliminate the polarization response of the optical devices in the spectrometer. A common method is adding depolarizer. The detection performance of the imaging spectrometer requires the depolarizer not only has the good depolarizing effect in response waveband of the spectrometer, but also affects the imaging quality of spectrometer as little as possible. In this paper, a compact double wedge depolarizer of limb imaging spectrometer for atmosphere remote sensing detection is studied. The wedge angle of the depolarizer is calculated and analyzed by means of integration, in addition, the parameters that affect the performance of the depolarizer are determined by MATLAB optimization simulation, and the related error analysis is carried out.