| 极轨星载TDI CCD相机的像移及恢复算法研究 |
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| 引用本文： | 陈梁,刘春霞,龚惠兴.极轨星载TDI CCD相机的像移及恢复算法研究[J].遥感学报,2002,6(1):35-39. |
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| 作者姓名： | 陈梁 刘春霞 龚惠兴 |
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| 作者单位： | 中国科学院,上海技术物理研究所,上海,200083 |
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| 摘 要： | 根据TDICCD特殊的工作方式，预测了由于地球自转而引起的极轨星载TDICCD相机的特殊像移及其对图像的影响，根据TDI像移产生的机理建立了数学模型，并求出了像移恢复滤波器的数字表达式，经过计算机仿真证明图像恢复算法有效。
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| 关 键 词： | TDICCD 像移 图像处理 相机 恢复算法 极轨卫星遥感 |
| 文章编号： | 1007-4619(2002)01-0035-05 |
| 收稿时间： | 2000/10/24 0:00:00 |
| 修稿时间： | 2000年10月24 |
Image Shift and Compensation of TDI CCD Camera for Polar Orbit Satellite |
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| CHEN Liang,LIU Chun-xia and GONG Hui-xing.Image Shift and Compensation of TDI CCD Camera for Polar Orbit Satellite[J].Journal of Remote Sensing,2002,6(1):35-39. |
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| Authors: | CHEN Liang LIU Chun-xia and GONG Hui-xing |
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| Abstract: | Due to the special operation mode of TDI CCD, image shift is resulted from earth self_rotation in polar orbit sensing. This kind of image shift makes image degradation, resolution decrease, and target margin mistiness. Compensating the shifted image is an important problem that must be resolved in the application of polar orbit satellite TDI CCD camera. In this paper, the image shift of TDI CCD camera for polar orbit satellite is forecasted, then the effect of image degradation is calculated. A mathematical model is set up according to the principle of TDI image shift, and an image compensation filter is worked out, which is proved to be valid by computer simulation. |
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| Keywords: | TDI CCD image shift image processing |
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