【摘要】 Hadmard变换成像光谱技术基于Hadmard变换光学基本原理,采用线阵探测器件实现高光谱成像,多通道探测优势使其在一定条件下可以获得与推帚式高光谱成像相当水平的探测信噪比。本文在阐述Hadmard变换成像光谱技术基本原理的基础上,通过类比光机扫描成像和推帚式成像,论证了Hadmard变换成像光谱技术的探测信噪比优势,设计了一套基于线阵短波红外器件、DMD芯片和双Offner光栅光谱仪系统的高光谱成像光谱仪,并简要论证了其工程可行性。更多还原

【Abstract】 Hadamard transform imaging spectrometer is based on Hadamard transform optics principle and performs hyperspectral imaging with a linear detector to provide superior signal-to-noise ratios.The mechanism of Hadamard transform imaging spectrometer is studied.The multiplexing advantages of Hadamard transform imaging spectrometer is argued compared to that of single-detector scanning and pushbroom scanning.A Hadamard transform near-infrared imaging spectrometer using a linear near-infrared detector and a digital micro-mirror device(DMD) and a double Offner system is designed.The engineering-oriented feasibility is demonstrated.更多还原