光学学报, 2018, 38 (5): 0511001, 网络出版: 2018-07-10
双通道剪切干涉高光谱成像方法的信噪比分析 
下载： 660次
Signal-to-Noise Ratio Analysis of Dual-Channel Shearing Interferometry Hyperspectral Imaging Method
成像系统 光谱学 干涉光谱成像 双通道剪切 信噪比 imaging systems spectroscopy interference spectral imaging dual-channel shearing signal-to-noise ratio
摘要
提出一种基于双通道剪切干涉的高光谱成像方法,并对其进行了信噪比(SNR)分析。介绍了干涉光谱成像系统的光谱复原SNR,对双矩形剪切干涉原理及双通道差分探测SNR进行了论述及仿真。搭建了实验装置,对实际场景目标进行了光谱成像SNR对比实验,获得了双通道差分探测系统的光谱探测SNR,并与非差分探测系统SNR进行了对比分析。结果表明所提差分干涉高光谱成像系统的光谱SNR为单通道系统的
2
Abstract
A hyperspectral imaging method based on dual-channel shearing interferometry is proposed and its signal-to-noise ratio (SNR) is analyzed. The spectral restoration SNR of interferometry spectral imaging system is introduced. The principle of dual-rectangle shearing interferometry and SNR of dual-channel differential detection are discussed and simulated. The experimental apparatus is built, and the SNR contrast experiment of the actual scene target is carried out. The spectral detection SNR of dual-channel differential detection system is obtained, which is compared and analyzed with SNR of non-differential detection system. Results show that the spectral SNR of the proposed differential interferometry hyperspectral imaging system is
2 times as that of the single-channel system.
刘成淼, 李建欣, 朱日宏, 崔向群. 双通道剪切干涉高光谱成像方法的信噪比分析[J]. 光学学报, 2018, 38(5): 0511001. Chengmiao Liu, Jianxin Li, Rihong Zhu, Xiangqun Cui. Signal-to-Noise Ratio Analysis of Dual-Channel Shearing Interferometry Hyperspectral Imaging Method[J]. Acta Optica Sinica, 2018, 38(5): 0511001.
PDF全文
