THE MEAN ECHO MODEL AND DATA PROCESS OF SAR ALTIMETER

	THE MEAN ECHO MODEL AND DATA PROCESS OF SAR ALTIMETER
	Yang Shuang-Bao; Liu He-Guang; Xu Ke; Xu Xi-Yu
	2011
会议名称	IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期	JUL 24-29, 2011
会议地点	Vancouver, CANADA
关键词	SAR altimeter delay/Doppler mean echo model
页码	2077-2080
通讯作者	Yang, SB (reprint author), CAS, Ctr Space Sci & Appl Res, Beijing, Peoples R China.
中文摘要	This paper is concerned with the theoretical model for SAR altimeter or Delay-Doppler radar altimeter. Work with this aim, first, the data process of the SAR altimeter is introduced and some assumptions of SAR altimeter systems are introduced. And this result in that the mean echo model of SAR altimeter could expressed as three terms convolution as that of conventional radar altimeter. Second, the sub-fan-beam pattern formed by along track signal process is analyzed and approximated with one simplified Gaussian expression. Third, the SAR altimeter measurement geometry is described and the mean echo model in common sense is described with parameters echo delay, sea wave height, scatter coefficients and radar antenna pointing angle. Some applications of these results are presented at the last section, include some features of mean echo model and proposal for future SAR altimeter system.
英文摘要	This paper is concerned with the theoretical model for SAR altimeter or Delay-Doppler radar altimeter. Work with this aim, first, the data process of the SAR altimeter is introduced and some assumptions of SAR altimeter systems are introduced. And this result in that the mean echo model of SAR altimeter could expressed as three terms convolution as that of conventional radar altimeter. Second, the sub-fan-beam pattern formed by along track signal process is analyzed and approximated with one simplified Gaussian expression. Third, the SAR altimeter measurement geometry is described and the mean echo model in common sense is described with parameters echo delay, sea wave height, scatter coefficients and radar antenna pointing angle. Some applications of these results are presented at the last section, include some features of mean echo model and proposal for future SAR altimeter system.
收录类别	EI ; CPCI
会议主办者	IEEE, Inst Elect & Elect Engineers Geosci & Remote Sensing Soc (IEEE GRSS)
会议录	2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
会议录出版者	IEEE
会议录出版地	NEW YORK
学科主题	微波遥感
语种	英语
ISBN号	978-1-4577-1005-6
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/3388]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Yang Shuang-Bao,Liu He-Guang,Xu Ke,et al. THE MEAN ECHO MODEL AND DATA PROCESS OF SAR ALTIMETER[C]. 见:IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Vancouver, CANADA. JUL 24-29, 2011.