Study On Optical Modulate Transfer Function Of CCD And Its Measuring Method

Through describing the space sampling process of CCD, the composing factors of Modulate Transfer Function (MTF) of CCD integral sampling process are analyzed. Meanwhile, an effective method to analyze the MTF of discrete sampling image system is put forward and is used to analyze and compare MTFs of sub-pixel image system and singlechip CCD system. As a result, definitions of CCD Optical Transfer Function (OTF) and optical MTF are presented and effective methods to measure CCD MTF are brought forward. And measure the MTF of TDICCD some different measuring methods, and described the results of comparing analysis.