| 基于ICCD的空间微光成像系统成像性能研究 |
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| 引用本文： | 练敏隆,王世涛.基于ICCD的空间微光成像系统成像性能研究[J].航天返回与遥感,2007,28(3):6-10. |
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| 作者姓名： | 练敏隆 王世涛 |
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| 作者单位： | 北京空间机电研究所,北京,100076;北京空间机电研究所,北京,100076 |
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| 摘 要： | 研究基于像增强型CCD(ICCD)的空间高分辨率微光成像系统的成像性能。通过理论推导及数学仿真的方法,对系统在微光条件下的能量传递、极限分辨力、信噪比以及调制传递函数进行分析计算。研究表明,系统在黎明照度条件下具有较好探测能力,通过对ICCD器件制冷可以有效提高系统信噪比,实现满月照度的探测成像。
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| 关 键 词： | 空间微光成像 像增强型电荷耦合器件 极限分辨力 信噪比 调制传递函数 航天遥感 |
| 修稿时间： | 2007年6月18日 |
Research on the Imaging Performance of Space Low Light Level Imaging System Based on ICCD |
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| Lian Minlong,Wang Shitao.Research on the Imaging Performance of Space Low Light Level Imaging System Based on ICCD[J].Spacecraft Recovery & Remote Sensing,2007,28(3):6-10. |
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| Authors: | Lian Minlong Wang Shitao |
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| Abstract: | In this paper,the imaging performance of space high resolution low light level imaging system based on ICCD is being researched on.By the theoretical derivation and mathematic emulation,the energy of light,limited resolution, signal to noise ratio and modulation transfer function of the system are analyzed in the low light level.It shows that there is strong imaging ability in the dawn illuminance.Cooling the ICCD can improve system's S/N effectively,and imaging in the plenilune illuminance is achieved. |
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| Keywords: | Space low light level imaging Image intensifier charge coupled device Limited resolution Signal to noise ratio Modulation transfer function Spacecraft remote sensing |
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