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长春光学精密机械与物... [1]
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会议论文 [1]
发表日期
2011 [1]
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The research of the accurate measure of static transfer function for the TDI CCD camera (EI CONFERENCE)
会议论文
3rd International Photonics and OptoElectronics Meetings, POEM 2010, November 2, 2010 - November 5, 2010, Wuhan, China
Guo-Ning L.
;
Long-Xu J.
;
Jian-Yue R.
;
Wen-Hua W.
;
Shuang-Li H.
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提交时间:2013/03/25
In the test course of static transfer function of TDI CCD camera
because of the influence that gets environmental and artificial etc. factor
the value of static transfer function measured at any time is between unceasing fluctuation
so
make accuracy reduce. To solve this problem
a kind of accurate measurement technique of static transfer function is put forward. First
before carrying out the measure of static quiet of transfer function
the best test point of transfer function of the TDI CCD camera must be determined
it is parallel to guarantee the rectangle target surface of parallel optical pipe and camera focal plane maintenance parallel
and again guarantee target strip in rectangle target and TDI CCD in camera focal plane maintenance vertical. TDI CCD catches rectangle target image
per 1000 lines of target mark image as a measures sample of static transfer function
exclude because of atmosphere tremble twisted
vague rectangle target mark image
retain 500 distinct and steady target mark image as measure sample set. Then
calculate the static transfer function of each measure sample respectively
take the average of all static quiet transfer function in measure sample set as the static transfer function of camera. Finally
the measure of the static transfer function for TDI CCD camera makes error analysis. Experimental results indicate that the value of the static transfer function of TDI CCD camera measured with this kind of method is 0.2923
with before measurement technique comparison
the value of static transfer function has raised 0.02
makes the accuracy of the measure of static transfer function have gotten raising.
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