| 对微波辐射成像质量影响因素的分析 |
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| 引用本文： | 桂良启,张祖荫,郭伟.对微波辐射成像质量影响因素的分析[J].红外与激光工程,2004,33(4):432-436. |
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| 作者姓名： | 桂良启 张祖荫 郭伟 |
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| 作者单位： | 华中科技大学,图像识别与人工智能研究所,图像信息处理与智能控制教育部重点实验室,湖北,武汉,430074 |
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| 摘 要： | 简述了微波辐射成像系统的工作原理。由于影响微波辐射成像质量的因素很多，本文主要从理论上分析了微波辐射成像系统中辐射计的空间分辨率、灵敏度与系统采样时间间隔、天线扫描速度、积分时间的关系，并进行了相关的实验。实验证明，它们之间是相互制约、相互影响的。在选择参数时要根据不同情况综合考虑，才能得到理想的图像。
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| 关 键 词： | 空间分辨率 灵敏度 积分时间 采样间隔 |
| 文章编号： | 1007-2276(2004)04-0432-05 |
| 收稿时间： | 2003/9/21 |
| 修稿时间： | 2003年9月21日 |
Analysis on the influence factors of microwave radiometric imaging quality |
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| GUI Liang-qi,ZHANG Zu-yin,GUO Weilligent Control.Analysis on the influence factors of microwave radiometric imaging quality[J].Infrared and Laser Engineering,2004,33(4):432-436. |
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| Authors: | GUI Liang-qi ZHANG Zu-yin GUO Weilligent Control |
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| Affiliation: | GUI Liang-qi,ZHANG Zu-yin,GUO Weilligent Control,Institute ofImage Recognition and Artificial Intelligence,Huazhong University of Science and Technology,Wuhan 430074,China)\, |
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| Abstract: | The principles of the microwave radiometric imaging system are discussed. For there are many factors which influence microwave radiometric imaging quality, the relationships among the radiometer spatial resolution,the radiometer sensitivity, the sampling interval, the antenna scanning speed and the integration time are analyzed. Then some corresponding experiments are made to examine the influence of two main factors: the integration time and the sampling interval. And the result proves that these factors restrict and effect each other. When the parameters of microwave radiometric imaging system are chosen, different situation must be considered. Thus, perfect image can be obtained. |
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| Keywords: | Spatial resolution Sensitivity Integration time Sampling interval |
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