热红外高光谱成像系统的背景抑制和性能优化

在分析热红外高光谱成像系统主要技术参数之间的制约关系的基础上,针对热红外高光谱成像系统目标能量微弱、背景热辐射严重等难点,提出了几种有效抑制背景辐射的措施,并建立了一套高背景抑制的热红外高光谱推帚式成像实验装置,实现了地面试验成像.根据冷背景实验结果,分析了热红外高光谱成像系统的性能和各种影响因素的关系,并提出了系统性能优化的可行性.

Background radiation suppression of a thermal infrared hyperspectral imaging system

Based on primary parameter analysis of the thermal infrared hyperspectral imaging system, several methods were proposed to overcome the difficulties in detecting objects with low signal energy, serious thermal infrared background radiation and other problems. A pushbrooming infrared hyperspectral imaging system was developed, which can suppress the high background radiation effectively, and the ground based imaging experiment was realized. Based on the low background experimental results, the relationship of the system performance with different factors was analyzed, and feasibility to optimize the system performance was comfirmed.