| JZ-1星座CCD摄像机光学系统F数的选择 |
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| 引用本文： | 朱敏,金伟其. JZ-1星座CCD摄像机光学系统F数的选择[J]. 光学技术, 2002, 28(6): 485-487 |
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| 作者姓名： | 朱敏 金伟其 |
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| 作者单位： | 北京理工大学信息科学技术学院,光电工程系,北京,100081 |
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| 摘 要： | F数是遥感CCD摄像机设计的关键参数 ,与其它重要参数关联度非常大 ,对摄像机的成像质量也有很大的影响。通过对动态范围、信噪比、传递函数、图像质量因子和焦深等参数在不同F数时结果的比较 ,说明F数的取值不是单调的 ,而是一个折中的过程。经论证认为F=4是比较合理的
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| 关 键 词： | F数 动态范围 信噪比 传递函数 图像质量因子 |
| 文章编号： | 1002-1582(2002)06-0485-03 |
| 修稿时间： | 2002-06-19 |
Selection of number for CCD camera in JZ-1 constellation |
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| ZHU Min,JIN Wei qi. Selection of number for CCD camera in JZ-1 constellation[J]. Optical Technique, 2002, 28(6): 485-487 |
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| Authors: | ZHU Min JIN Wei qi |
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| Abstract: | F number, a key parameter in remote sensing CCD camera design, is strongly associated with other important parameters of the camera and has a great influence on the image quality. The results in different F number with such parameters as dynamic range, signal to noise ratio, modulation transmittance function, image quality factor, and focal depth are compared. They show that the process of selecting F number is not a monotonous one, but one of compromise. After validation, it is demonstrated that F=4 may be comparatively rational. |
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| Keywords: | F number dynamic range SNR MTF image quality factor |
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