干旱区生态环境知识资源中心(Arid): 成像雷达干涉测量数据相关性与干旱一半干旱地区地表类型特征的关系

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	成像雷达干涉测量数据相关性与干旱一半干旱地区地表类型特征的关系
其他题名	Relationship between coherence of sar interferometry and surface feature in acrid to semi-acrid area
	廖静娟; 邵芸; 郭华东; Veneziani N
来源期刊	地球科学进展
ISSN	1001-8166
出版年	2002
卷号	17 期号:5 页码:648-652
中文摘要	利用欧洲资源卫星1号和2号获取的重轨干涉测量雷达数据，首先进行干涉测量数据相关性估测，并结合干涉测量娄据的振幅信息，开展新疆喀什试验区地表土地类型的识别与分类，区分和识别出裸土、盐碱地、灌丛、裸岩/戈壁、沼泽和水体6类土地类型。最后通过对不同土地类型的后向散射特性和相关性的分析，探坟了干涉测量数据相关性与干旱-半干蛙地区地表特征的关系。
英文摘要	At recent years, imaging radar interferometric technique with its all weather, day and night capabilities, can generate the digital elevation model (DEM) and monitor surface change using amplitude and phase information from radar signal. So it has become a potential tool to acquire more resource and environmental information. The repeat-pass interferometry acquires two images by using one antenna for repeat passes over the same area at two different times. The two images can be used for further information extraction only while they have somewhat coherence. This paper presented the results of discrimination and classification of surface land types in Kashi test site, Xinjing of northwestern China using the repeat-pass interferometric data, acquired by European Resource Satellite 1 and 2, based on the interferometric coherence estimation and amplitude intensity. Six types of land were discriminated and classified, including in bare soil, salina, bush, bare rock/gobi, marsh and water body. Then the back-scatter and coherence characteristics of these land types were analyzed, and the relationship between coherence and surface features in acrid and semi-acrid area was also discussed. Bare soil and dry salina have high coherence, but their backscatter coefficients are different. Bush has middle coherence, and the backscatter feature is similar to bare soil. Wet salina and bare rock /gobi have low coherence, and have the different backscatter coefficients. Marsh and water body have the lowest coherence, and their backscatter features are different.
中文关键词	成像雷达 ; 干涉测量 ; 干旱-半干旱地区 ; 地表特征
英文关键词	imaging radar interferometry coherence acrid to semi-acrid area surface features
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Geology
CSCD记录号	CSCD:988163
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378332
作者单位	廖静娟, 中国科学院遥感应用研究所, 遥感信息科学开放研究实验室, 北京 100101, 中国.; 邵芸, 中国科学院遥感应用研究所, 遥感信息科学开放研究实验室, 北京 100101, 中国.; 郭华东, 中国科学院遥感应用研究所, 遥感信息科学开放研究实验室, 北京 100101, 中国.
推荐引用方式 GB/T 7714	廖静娟,邵芸,郭华东,等. 成像雷达干涉测量数据相关性与干旱一半干旱地区地表类型特征的关系[J],2002,17(5):648-652.
APA	廖静娟,邵芸,郭华东,&Veneziani N.(2002).成像雷达干涉测量数据相关性与干旱一半干旱地区地表类型特征的关系.地球科学进展,17(5),648-652.
MLA	廖静娟,et al."成像雷达干涉测量数据相关性与干旱一半干旱地区地表类型特征的关系".地球科学进展 17.5(2002):648-652.