摘要
超光谱成像是一种场景图谱合一的技术,在战场侦察中得到了迅速应用,其成像质量的评价问题已受到越来越多人的关注。基于CCD对正弦输入信号的响应特性的基础上,对信号输出周期、极值位置进行了理论分析和数值模拟。根据调制传递函数对比度定义,给出线阵CCD的平均调制传递函数的三种表达式,并与傅立叶法调制传递函数进行了仿真比对,以此得出线阵CCD平均调制传递函数表达式。
As an image-spectrum merging technology, hyperspectral imaging has been used in battlefield reconnaissance rapidly. Based on response of CCD to the sine input signal, the period and extremal positions of output signal were analyzed and simulated. According to the definition of MTF based on contrast, three expressions of the average MTF of line-array CCD were presented and compared with those based on Fourier transform method. Finally, the average MTF of line-array CCD is confirmed.
出处
《红外技术》
CSCD
北大核心
2009年第5期249-251,255,共4页
Infrared Technology
基金
国家自然科学基金资助项目(编号:60538020)
绥化学院杰出青年基金资助项目(编号:SJ08001)
