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地球科学进展  2009, Vol. 24 Issue (7): 810-816    DOI: 10.11867/j.issn.1001-8166.2009.07.0810
地面观测资料分析     
典型地物后向散射特性的测量与分析
徐春亮,陈彦*,贾明权,刘增灿,卢海平,童玲
成都电子科技大学,四川  成都  610054
Measurement and Analysis of Backscattering Properties on typical surface features
Xu Chunliang,Chen Yan,Jia Mingquan,Liu Zengcan,Lu Haiping,Tong Ling
University of Electronic Science and Technology of China, Chengdu 610054,China
 全文: PDF(2015 KB)  
摘要:

利用S和C波段FM-CW制式陆基微波散射计测量了不同极化、不同入射角以及不同方位向和不同时间的典型地物后向散射系数,包括裸土、冻土、草地和玉米等。首先介绍了实验装置和测量方法,根据不同的散射机制,将地物分为以面散射为主和以体散射为主两大类并进行了详细的分析:包括各种地物在不同入射角、不同极化状态和不同时间的散射特性,以及产生这些差异的原因;同时还结合相应的地物散射模型,定量研究了后向散射系数随地表参数的函数关系,反演得到了不同地物的地表参数,并对比实测数据分析了各种影响因素。

关键词: 陆基散射计后向散射系数AIEM水云模型微波遥感    
Abstract:

The backscattering coefficient on typical surface features such as, frozen soil, maize, etc. was measured by S and C bands FM-CW standard ground-based microwave scatterometer under the different time and different wave band and different polarized condition. The experiment and the measuring technique in detail are introduced. According to different scattering mechanisms, features are divided into two categories: Surface scattering and volume scattering. Scattering characteristics under the different time and different wave band and different polarized condition and the reasons for these differences are analyzed. Combining with the corresponding features scattering model, a quantitative study of a function between the backscattering coefficient and surface parameters is made. Different surface parameters of features by inversion are obtained. A variety of Influencing factors by comparing the measured dates.

Key words: Ground-based scatterometer    Backscattering coefficient    Advanced Integral Equation Model(AI-EM)    Water-cloud model    Microwave remote sensing
收稿日期: 2008-12-08 出版日期: 2009-07-10
:  TP79  
基金资助:

国家重点基础研究发展计划项目“陆表生态环境要素主被动遥感协同反演理论与方法”(编号:2007CB714400);中国科学院西部行动计划(二期)项目“黑河流域遥感—地面观测同步试验与综合模拟平台建设”(编号:KZCX2-XB2-09)资助.

通讯作者: 陈彦(1962-),女,四川成都人,教授,主要从事微波遥感方面的研究.     E-mail: yanchen@uestc.edu.cn
作者简介: 徐春亮(1983-),男,河南开封人,硕士研究生,主要从事微波遥感方面的研究. E-mail:xuchunliang523@163.com
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引用本文:

徐春亮,陈彦,贾明权,刘增灿,卢海平,童玲. 典型地物后向散射特性的测量与分析[J]. 地球科学进展, 2009, 24(7): 810-816.

Xu Chunliang,Chen Yan,Jia Mingquan,Liu Zengcan,Lu Haiping,Tong Ling. Measurement and Analysis of Backscattering Properties on typical surface features. Advances in Earth Science, 2009, 24(7): 810-816.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2009.07.0810        http://www.adearth.ac.cn/CN/Y2009/V24/I7/810

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