| 毫米波目标辐射亮温的极值解 |
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| 引用本文： | 聂建英, 李兴国, 娄国伟. 毫米波目标辐射亮温的极值解[J]. 电子与信息学报, 2003, 25(11): 1536-1541. |
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| 作者姓名： | 聂建英 李兴国 娄国伟 |
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| 作者单位： | 1. 南京理工大学毫米波光波近感技术研究所,南京,210094;南京师范大学,南京,210097
2. 南京理工大学毫米波光波近感技术研究所,南京,210094 |
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| 基金项目： | 国防预研基金(98J10.1.3BQ0208)，国家自然科学基金(10071039) |
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| 摘 要： | 毫米波近感技术是利用物体的毫米波辐射特性,探测识别目标的技术。它在许多领域有着重要作用。为在毫米波辐射探测中求得精确的真实目标亮温,必须建立天线电磁辐射与环境电磁辐射交会的数学模型。此是第一类病态 Fredholm积分方程,该文给出毫米波辐射计目标辐射亮温的极值解。
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| 关 键 词： | 毫米波辐射计 天线温度 亮度温度 第一类Fredholm积分方程 反演 |
| 收稿时间： | 2002-06-14 |
| 修稿时间： | 2002-06-14 |
EXTREMAL SOLUTION OF THE TARGET'S BRIGHTNESS TEMPERATURE IN MILLIMETER WAVE RADIOMETRIC MEASUREMENTS |
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| Nie Jianying, Li Xingguo, Lou Guowei. Extremal solution of the targets brightness temperature in millimeter wave radiometric measurements[J]. Journal of Electronics & Information Technology, 2003, 25(11): 1536-1541. |
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| Authors: | Nie Jianying Li Xingguo Lou Guowei |
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| Affiliation: | Inst. of MMW & Optical Wave Tech., Nanjing Univ. of Sci. & Tech., Nanjing 210094,China;Nanjing Normal University, Nanjing 210097, China |
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| Abstract: | The near sensing techniques with millimeter wave play important role in many fields. To make precise measurements of the radiometric brightness temperature of a target, one must set up model of the interaction between the electromagnetic radiation properties of the antenna and the incident radiation from the environment. This interaction can be described by Fredholm integral equation of the first kind which is extremely unstable. In this paper, a inversion method is presented and is then applied to retrieve armored target's brightness temperature in millimeter wave radiometric measurements. |
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| Keywords: | Millimeter wave radiometer Antenna temperature Brightness temperature Fredholm integral equation of the first kind Inversion |
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