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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; Xu, XY (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, CAS Key Lab Microwave Remote Sensing, Beijing 100864, Peoples R China.
Department微波遥感部
Source Publication2013 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
2013
Pages1642-1644
Language英语
ISBN978-1-4799-1114-1
AbstractThis 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.; 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.
KeywordAltimeter Noise Level Agc Linear Regression
Conference NameIEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJUL 21-26, 2013
Conference PlaceMelbourne, AUSTRALIA
Indexed ByEI ; CPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1792
Collection微波遥感部
Corresponding AuthorXu, XY (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, CAS Key Lab Microwave Remote Sensing, Beijing 100864, Peoples R China.
Recommended Citation
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]. ,NJ, USA:IEEE,2013:1642-1644.
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