| 多次采样技术在红外推扫系统中的分析与应用 |
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| 引用本文： | 蔡海蛟,危峻,徐蒙. 多次采样技术在红外推扫系统中的分析与应用[J]. 激光与红外, 2007, 37(7): 644-646 |
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| 作者姓名： | 蔡海蛟 危峻 徐蒙 |
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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;中国科学院研究生院,北京,100039;中国科学院上海技术物理研究所,上海,200083 |
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| 摘 要： | 介绍了影响红外推扫系统噪声等效温差(NETD)的参数,证明了多次采样技术可以显著降低系统NETD,提出了在驻留时间一定的情况下选择积分时间和采样次数的原则.通过短波红外相机实验表明多次采样技术可以显著提高图像质量.
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| 关 键 词： | 红外技术 NETD 多次采样 积分时间 |
| 文章编号： | 1001-5078（2007）07-0644-03 |
| 修稿时间： | 2006-11-062006-12-21 |
Analysis and Application of Multiple Sampling Technology in Infrared Push broom System |
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| CAI Hai-Jiao,WEI Jun,XU Meng. Analysis and Application of Multiple Sampling Technology in Infrared Push broom System[J]. Laser & Infrared, 2007, 37(7): 644-646 |
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| Authors: | CAI Hai-Jiao WEI Jun XU Meng |
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| Affiliation: | 1. Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; 2. Graduate School, Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | In infrared,particularly long-wave infrared remote sensing system,the NETD is one of the most important performance parameters.In the infrared push-broom systems of satellites,the multiple sampling technology is widely used to improve the performance of systems.This article introduces the parameters that influence the NETD of infrared push-broom systems,proves that the multiple sampling technology can remarkably reduce the NETD,and gives a principle of choosing integrating time and sampling times when the resident time of system is fixed.By experiments of a short-wave infrared camera,it is proved that the multiple sampling technology can remarkably improve the image quality. |
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| Keywords: | infrared NETD multiple sampling integrating time |
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