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一种提高海洋雷达高度计重跟踪估值精度的处理方法
Alternative TitleA New RetrackingMethod for Improv ing the EstimatesAccuracy of Ocean Radar Altimeter
张婷; 许可; 北京8701信箱
Department国家863计划微波遥感技术实验室
Source Publication遥感技术与应用
2007
Volume22Issue:3Pages:422-427
ISSN1004-0323
Language中文
Keyword雷达高度计 重跟踪 点目标响应 加权窗
Abstract重跟踪处理可以从雷达高度计接收的海洋回波信号中提取精确的测量信息,传统的海洋高度计重跟踪模型中没有考虑到仪器对回波信号的影响,这种影响造成回波波形与重跟踪模型的偏离,从而降低了重跟踪的参数提取精度.提出了一种利用点目标响应和加权窗进行海洋高度计重跟踪的新方法,该方法考虑了仪器对回波波形的影响因素,在此基础上重新构造了重跟踪的信号模型,使回波波形与重跟踪模型曲线之间符合更好,从而提高了参数提取的精度.利用该方法对SZ-4高度计的数据进行了处理,并将处理结果与同期测量的ERS-2高度计数据进行对比,对比结果显示该方法显著改善了参数提取的效果.
Other AbstractRetracking is a key phase in the data p rocessing fo r ocean radar alt imeter to ex t ract the precise ocean parameters.Tradit ional ocean ret rack ing model didn't con sider the b ias in t roduced by the in st rumen t s, and the b ias can reduce the accu racy of est imates. Th is paper b rings fo rw ard a new ret rack ing model fo r radar alt imeter, in which the point target respon se and w eigh t w indow are utilized to revise the b ias of signalmodel,therefo re the accu racy of est imates is imp roved.This new ret rack ing model is used to process the data of SZ24 radar alt imeter,and the resu lt s show that th is model can effect ively improve the accu racy of the estimates.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2013
Collection微波遥感部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
张婷,许可,北京8701信箱. 一种提高海洋雷达高度计重跟踪估值精度的处理方法[J]. 遥感技术与应用,2007,22(3):422-427.
APA 张婷,许可,&北京8701信箱.(2007).一种提高海洋雷达高度计重跟踪估值精度的处理方法.遥感技术与应用,22(3),422-427.
MLA 张婷,et al."一种提高海洋雷达高度计重跟踪估值精度的处理方法".遥感技术与应用 22.3(2007):422-427.
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