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题名: 基于有源定标器的HY-2高度计后向散射系数在轨定标方法研究
其他题名: Study on the Approach for Backscattering Coefficient In-orbit Calibration of HY-2Altimeter Using A Reconstructive Transponder
作者: 龚循武; 郭伟; 万珺之
作者部门: 微波遥感部
关键词: HY-2高度计 ; 有源定标器 ; 定标 ; 后向散射系数
刊名: 遥感技术与应用
ISSN号: 1004-0323
出版日期: 2017
卷号: 32, 期号:2, 页码:374-379
收录类别: CSCD
中文摘要: 为保证HY-2卫星高度计输出数据的准确性和稳定性,提高其对海面风速的测量精度,提出了一种基于脉冲重建型有源定标器对HY-2高度计后向散射系数进行在轨定标的方法,开展了在轨定标实验,得到了定标因子。将定标因子用于校正高度计测量的海面后向散射系数,并且与Jason2所测得的后向散射系数进行对比,取得了一致的结果,验证了方法的可行性和准确性。
英文摘要: In order to guarantee the accuracy and stability of data from HY-2satellite and improve the measuring precision about sea wind speed,this paper presents an approach,based on a reconstructive transponder, for the backscattering coefficient in-orbit calibration of HY-2Altimeter.Several experiment have been conducted according to this method and the value of scaling factor could be calculated from the corresponding experimental data.The scaling factor is used in correcting backscattering coefficient measured by the altimeter. Finally,we compared the value from HY-2with the result from Jason2and the consistent result verifies the feasibility and accuracy of the approach.
语种: 中文
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内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6179
Appears in Collections:微波遥感部_期刊论文

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