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一种计算雷达高度计重跟踪修正表的新方法及其应用
Alternative TitleA New Method for Computing Radar Altimeter Look–up Correction Table and Its Application
王磊; 许可; 徐曦煜; 史灵卫; 北京8701信箱
Department国家863计划微波遥感技术实验室
Source Publication电子与信息学报
2013
Volume35Issue:4Pages:908-914
ISSN1009-5896
Language中文
Keyword雷达高度计 重跟踪 修正表 平坦海面脉冲响应函数
Abstract在计算雷达高度计的重跟踪修正表时,目前通常的做法是将平坦海面脉冲响应函数用指数函数近似表示,并忽略了这种近似对修正表的影响。该文对这一近似方法的误差进行了分析,在此基础上提出了采用平坦海面脉冲响应函数准确形式计算重跟踪修正表的方法,利用该方法可以显著降低大误指向角情况下的参数反演误差。该文利用这一新方法计算了HY-2卫星雷达高度计的重跟踪修正表,并对其回波数据进行了处理。结果表明,采用该文提出的方法可以显著提高大误指向角情况下的参数反演精度。
Other AbstractPresently, the radar altimeter look-up correction tables are usually computed with an approximate exponential flat sea surface response function, and the effects of this approximation are neglected. In this paper, the errors of this approximation method are analyzed, and a new method of using the accurate flat sea surface response function is derived to compute the look-up correction tables. This new method can greatly decrease the errors when antenna mispointing angle is large. The new method is applied to HY-2 altimeter, and obtains a more accurate result.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2066
Collection微波遥感部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
王磊,许可,徐曦煜,等. 一种计算雷达高度计重跟踪修正表的新方法及其应用[J]. 电子与信息学报,2013,35(4):908-914.
APA 王磊,许可,徐曦煜,史灵卫,&北京8701信箱.(2013).一种计算雷达高度计重跟踪修正表的新方法及其应用.电子与信息学报,35(4),908-914.
MLA 王磊,et al."一种计算雷达高度计重跟踪修正表的新方法及其应用".电子与信息学报 35.4(2013):908-914.
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