基于DMD的光谱分辨率自适应Hadamard变换成像光谱仪

Hadamard Transform Spectral Imager of Adaptive Spectral Resolution Based on DMD

数字微镜器件(DMD)可以灵活高效地实现各阶Hadamard编码模板,设计了一种基于DMD的光谱分辨率自适应的Hadamard变换成像光谱仪,分析了仪器的结构和工作原理及实现光谱分辨率自适应的方法。它可以根据目标景物和观测要求的不同而自适应地调整光谱成像的光谱分辨率,从而在光谱准确度和数据计算量之间做出合理的折衷,既满足了对目标分类识别的要求,又提高了数据传输和处理的速度。

Digital micro-mirror device （DMD） can be controlled to form Hadarnard encoding masks flexibly and efficiently. A kind of Hadamard transform spectral imager of adaptive spectral resolution based on DMD is proposed. The structure and the working principle of the instrument are described and the implementation method of adaptive spectral resolution is analyzed. It can adjust the spectral resolution according to the target and the observational requirements, and a reasonable compromise can be reached between the spectral accuracy and the computation of data. It not only meets the requirements of the target classification and recognition, but also improves the speed of data transmission and processing.