CAJ | 학술논문

在理想情况下，红外探测器的每一列应该具有相同的增益，如果假设每个像素点对相同的黑体辐射温度响应都相等，则最终输出的图像应为一幅非常均匀的图像，但在实际情况中，由于红外探测器焦平面的制作工艺水平以及焦平面材料组分的缺陷，每个像素点对黑体辐射的响应不会完全相同，同时，每个列方向上通道的增益大小也不会完全相同，特别是当列与列之间的差异较为明显时。因此，主要对红外探测器焦平面读出电路中列通道的增益非均匀性情况进行了分析，根据分析结果推导出模拟探测器列通道增益非均匀性的模型，并对拟合曲线进行了精度分析。
재이상정황하，홍외탐측기적매일렬응해구유상동적증익，여과가설매개상소점대상동적흑체복사온도향응도상등，칙최종수출적도상응위일폭비상균균적도상，단재실제정황중，유우홍외탐측기초평면적제작공예수평이급초평면재료조분적결함，매개상소점대흑체복사적향응불회완전상동，동시，매개렬방향상통도적증익대소야불회완전상동，특별시당렬여렬지간적차이교위명현시。인차，주요대홍외탐측기초평면독출전로중렬통도적증익비균균성정황진행료분석，근거분석결과추도출모의탐측기렬통도증익비균균성적모형，병대의합곡선진행료정도분석。
Assumed that the response to the blackbody radiation of the same temperature are equal for each pixel, each column of the infrared detector should have the same gain. But in practice, due to the defects of the production process and the material components of the focal plane array, the response of each pixel is not identical, meanwhile the channel gain of each column is not the same. The column channel gain non-uniformity of the readout circuit of the IRFPA was mainly studied. A lot of actual data was used for column channel output response curve fitting. Then, according to the data, the model of the polynomial curve simulate detector with column channel gain non-uniformity was deduced, and the precision analysis of the fitting curve was did, where a hypothesis testing method was used to verify whether the polynomial model was fit for the column gain of actual detector in global. Finally, a good simulation to the gain non-uniformity of each column was achieved.