| 毫米波频段亮温度的计算 |
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| 引用本文： | 蒋小勇,翟宏,陈晋龙.毫米波频段亮温度的计算[J].宇航计测技术,2009,29(3):8-10. |
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| 作者姓名： | 蒋小勇 翟宏 陈晋龙 |
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| 作者单位： | 北京无线电计量测试研究所,北京,100039 |
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| 摘 要： | 许多由普朗克定律的瑞利-琼斯近似推导而来的亮温度计算方法已被广泛应用，但适当的误差修正却容易被忽视。随着地球遥感科学和微波噪声标准应用频率的不断升高，这些误差变得更为显著。研究了一些广泛应用的亮温度近似公式的误差修正方法，计算了这些公式在不同条件下与普朗克定律计算结果的偏差，旨在对这些公式的误差修正引起重视并作出相应的修正。
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| 关 键 词： | 亮温度微波遥感发射率 |
Brightness Temperature Analyzing at Millimeter Wavelengths |
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| JIANG Xiao-yong,ZHAI Hong,CHEN Jin-long.Brightness Temperature Analyzing at Millimeter Wavelengths[J].Journal of Astronautic Metrology and Measurement,2009,29(3):8-10. |
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| Authors: | JIANG Xiao-yong ZHAI Hong CHEN Jin-long |
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| Institution: | (Beijing Institute of Radio Metrology ＆ Measurement,Beijing 100039) |
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| Abstract: | Several formulas relating to brightness temperature which derived from Rayleigh-Jeans approximation were customarily used in the microwave region, but necessary correction were often be ignored. Aimed at the correction of those formulas and found that the correction becomes progressively larger towards the shorter millimeter wavelengths which should be considered on remote sensing and microwave noise standard research. |
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| Keywords: | Brightness temperature Microwave remote sensing Emissivity |
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