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输入信号与CCD像元位相匹配对调制传递函数的影响
Influence of phase match between input signal and CCD pixel on the MTF
【摘要】 通过对CCD采样过程的分析,说明了输入信号与CCD像元位相匹配对调制传递函数(MTF)有影响。利用自制的MTF测量装置,在两个像元长度范围内,测定了线阵CCD的MTF随输入信号与CCD像元之间的位相而变化的情况,实验结果与理论结果吻合
【Abstract】 That the phase match between input signal and CCD pixel has influence on the measuring results of MTF is showed by the analysis of the CCD sampling process. The situation that MTF values of linear CCD array change with the phase of input signal is measured in the range of two pixels period. The experiment is done by using the apparatus made by themselves. The results accord with the theory results.
【关键词】 CCD;
调制传递函数;
位相匹配;
【Key words】 charge couple device; modulation transfer function; phase match;
【Key words】 charge couple device; modulation transfer function; phase match;
- 【文献出处】 光学技术 ,OPTICAL TECHNOLOGY , 编辑部邮箱 ,1999年03期
- 【分类号】O438
- 【被引频次】27
- 【下载频次】248