傅里叶光谱仪的光程扫描控制系统设计  

Optical path scanning control system design of the Fourier spectrometer

作　　者：粘伟[1] 刘兆军[1] 林喆[1] 吴春楠[1] 

机构地区：[1]北京空间机电研究所,北京100076

出　　处：《红外与激光工程》2013年第8期2085-2091,共7页Infrared and Laser Engineering

基　　金：国家重大科技专项工程

摘　　要：为实现高信噪比、高光谱分辨率的光谱探测性能,在时间调制型傅里叶变换光谱仪中,需要控制反射镜往复精密摆动,完成干涉光程差的均匀扫描调制。首先分析了光谱探测性能对光程扫描控制性能要求间的关系;在此基础上,针对星载干涉仪对光程差扫描的高性能要求,给出了一种基于极点匹配的控制器设计方法。该方法借助于状态反馈设计结果,采用易于工程应用的前项和前馈环节加以有效实现,简化了控制器的设计与实现难度。通过仿真试验,验证了该方法的有效性。To achieve a high signal-to-noise ratio, high spectral resolution spectroscopy detection performance, it needs to control the mirror reciprocating precision swing to complete uniformity scan modulation of the interference optical path difference in time modulation type Fourier transform spectrometer. Firstly, the relationship between the spectral detection performance and the scanning control performance requirements was analyzed. On this basis, according to the high performance requirements, a controller design method based on the pole assignment was proposed. Referencing the state feedback design results, the forward and the feed-forward link was used to realize effectively. The controller design and the difficulty of the realization was simplified. The simulation results show that the proposed method is effective.

关 键 词：扫描控制 极点配置 星载干涉仪 光程差 

分 类 号：TM301.2[电气工程—电机] TH744[机械工程—光学工程]