IMPROVEMENT OF ALTIMETER RE-TRACKING PERFORMANCE UTILIZING THE AGC-DERIVED THERMAL NOISE LEVEL

	IMPROVEMENT OF ALTIMETER RE-TRACKING PERFORMANCE UTILIZING THE AGC-DERIVED THERMAL NOISE LEVEL
	Xu Xi-Yu; Liu He-Guang; Yang Shuang-Bao; Shi Ting-Ting
	2013
会议名称	IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期	JUL 21-26, 2013
会议地点	Melbourne, AUSTRALIA
关键词	Altimeter noise level AGC linear regression
页码	1642-1644
通讯作者	Xu, XY (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, CAS Key Lab Microwave Remote Sensing, Beijing 100864, Peoples R China.
中文摘要	This paper tries to establish a relationship between the AGC (Automated Gain Control) value and thermal noise level in satellite altimetry. The motivation is that: in the non-ocean situation, the noise floor level may be too high to be reasonable, especially in C-Band as we would see. This may occur from the ground surface echoes which enter the noise gate. In the re-tracking procedure if the improper noise level was adopted, some errors may be introduced. In these situations the noise level can be derived from the AGC value.
英文摘要	This paper tries to establish a relationship between the AGC (Automated Gain Control) value and thermal noise level in satellite altimetry. The motivation is that: in the non-ocean situation, the noise floor level may be too high to be reasonable, especially in C-Band as we would see. This may occur from the ground surface echoes which enter the noise gate. In the re-tracking procedure if the improper noise level was adopted, some errors may be introduced. In these situations the noise level can be derived from the AGC value.
收录类别	EI ; CPCI
会议主办者	IEEE, Inst Elect & Elect Engineers, Geoscience & Remote Sensing Soc
会议录	2013 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
会议录出版者	IEEE
会议录出版地	,NJ, USA
学科主题	微波遥感
语种	英语
ISBN号	978-1-4799-1114-1
内容类型	会议论文
源URL	[http://ir.cssar.ac.cn/handle/122/1792]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Xu Xi-Yu,Liu He-Guang,Yang Shuang-Bao,et al. IMPROVEMENT OF ALTIMETER RE-TRACKING PERFORMANCE UTILIZING THE AGC-DERIVED THERMAL NOISE LEVEL[C]. 见:IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Melbourne, AUSTRALIA. JUL 21-26, 2013.