【摘要】 调制传递函数（ Ｍ ｏｄｕｌａｔｉｏｎ Ｔｒａｎｓｆｅｒ Ｆｕｎｃｔｉｏｎ Ｍ Ｔ Ｆ）是评价成像系统质量的重要指标． 介绍了用 Ｍ Ｔ Ｆ来评价 Ｃ Ｃ Ｄ 的质量方法，给出调制传递函数的测量方法，讨论了 Ｃ Ｃ Ｄ 接收正弦光栅图样后的数据采集、转换及处理技术． 结果表明，本方法具有成本低、简便易测、精度高等优点．更多还原

【Abstract】 Modulation transfer function ( MTF ) is an important quality index of evaluating image forming system. In this paper,the method measuring MTF of CCD using frequency\|variable sine grating pattern is discussed. The emphasis is put on data collection,transfer and processing techniques. The measuring and calculating of MTF of some CCD are given.更多还原