| 星载TDI-CCD推扫相机的偏流角计算与补偿 |
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| 引用本文： | 袁孝康.星载TDI-CCD推扫相机的偏流角计算与补偿[J].上海航天,2006,23(6):10-13. |
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| 作者姓名： | 袁孝康 |
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| 作者单位： | 上海卫星工程研究所,上海,200240 |
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| 摘 要： | 在星载时间延迟积分电荷耦合器件(TDI-CCD)线阵推扫成像相机中,为使TDI-CCD线阵移动方向与目标像移方向一致,并实现光生电荷包转移速度与目标像移速度的匹配以确保成像质量,提出一种用卫星偏航控制实现相机偏流角补偿的方法。导出了星下点、方位偏移和俯仰偏移成像时相机偏流角,以及目标像移速度的解析计算公式,并对偏流角补偿进行了讨论。
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| 关 键 词： | 延迟积分电荷耦合器件 推扫成像 偏流角 像移速度 像移补偿 |
| 文章编号： | 1006-1630（2006）06-0010-04 |
| 收稿时间： | 2006-03-15 |
| 修稿时间： | 2006年3月15日 |
Calculation and Compensation for the Deviant Angle of Satellite Borne TDI-CCD Push Scan Camera |
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| YUAN Xiao-kang.Calculation and Compensation for the Deviant Angle of Satellite Borne TDI-CCD Push Scan Camera[J].Aerospace Shanghai,2006,23(6):10-13. |
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| Authors: | YUAN Xiao-kang |
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| Institution: | Shanghai Institute of Satellite Engineering, Shanghai 200240, China |
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| Abstract: | To keep the same direction of the array for time delay and integration CCD(TDI-CCD) moving on as the one of the target image moved on,and implement the match the velocity of the charge bag translated and the target image moved for high quality imaging in the camera of satellite-borne TDI-CCD,a method of the camera deviant angle compensation realized by yaw control of the satellite was put forward in this paper.The calculative formulas of the deviant angle for the TDI-CCD camera and the velocity of the target image moved were deduced in variety cases of imaging at satellite ground point,biased yaw,biased azimuth and general condition.The deviant angle compensation of the camera was explained. |
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| Keywords: | Time delay and integration CCD Push scan on image Deviant angle Image moving velocity Image moving compensation |
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