液晶与显示2011，Vol.26Issue(2)：255-259,5.DOI:10.3788/YJYXS20112602.0255
在轨完成CCD非均匀性校正的方法
Method of CCD Non-Uniformity Correcting in Orbit
李丙玉 1王晓东 2李哲1
作者信息
- 1. 中国科学院长春光学精密机械与物理研究所,吉林,长春,130033
- 2. 中国科学院研究生院,北京,100039
- 折叠
摘要
Abstract
In order to get space camera image with good uniformity, a method of real-time TDI-CCD non-uniformity correction in orbit using XQ2VP40 FPGA is studied.Firstly the principle of CCD non-uniformity correction is analyzed, a two-point correction algorithm of half saturation gray and dark field gray is proposed, then the architecture of space cameras is introduced and correction algorithm utilizing FPGA is realized, finally the effect is proved by experimental result.The experimental results show that the method of CCD non-uniformity correcting is feasible, for the TDI-CCD whose non-uniformity is 5％, the non-uniformity is less than 1 ％ after correction.关键词
在轨/实时/TDI-CCD/暗场/非均匀性Key words
in orbit/ real-time/ TDI-CCD/ dark field/ non-uniformity分类
航空航天引用本文复制引用
李丙玉,王晓东,李哲..在轨完成CCD非均匀性校正的方法[J].液晶与显示,2011,26(2):255-259,5.
