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遥感技术与应用  2016, Vol. 31 Issue (5): 912-918    DOI: 10.11873/j.issn.1004-0323.2016.5.0912
微波遥感专栏     
基于有源定标器的卫星雷达高度计近海测高基准重建方法研究
谌华1,2,3,郭伟1,2,万珺之1,2,3,赵飞1,2,王彩云1,2
(1.中国科学院微波遥感技术重点实验室,北京 100190;
2.中国科学院国家空间科学中心,北京 100190; 3.中国科学院大学,北京 100049)
Research on the Method of Re-construct Satellite Radar Altimeter Measurements Datum over Coastal Waters based on Transponder
Chen Hua1,2,3,Guo Wei1,2,Wan Junzhi1,2,3,Zhao Fei1,2,Wang Caiyun1,2
(1.Key Laboratory of Microwave Remote Sensing,Chinese Academy of Sciences,Beijing 100190,China;
(2.Center for Space Science and Applied Research,Chinese Academy of Sciences,Beijing 100190,China;
(3.University of Chinese Academy of Sciences,Beijing 100049,China)
 全文: PDF(1572 KB)  
摘要:

利用卫星雷达高度计开展高精度近海高度测量面临诸多问题,重构受污染的近海回波波形,建立近海测高基准是实现高精度近海高度测量的重要基础。介绍一种利用有源定标器重建卫星雷达高度计近海测高基准的方法,以HY\|2卫星雷达高度计为例,分别分析了离岸距离大于20 km、离岸距离小于2 km及离岸距离处于2 ~20 km之间处近海地区雷达高度计回波波形受影响情况,并从理论上推导了该方法建立近海测高基准的精度。在2012年7月5日唐山近海地区HY\|2高度计在轨定标试验中,首次观测到近海地区有源定标器转发高度计信号的回波波形,结果表明:利用有源定标器重建卫星雷达高度计近海测高基准的方法可行,该方法将有助于提高近海测高精度。

关键词: 近海高度测量有源定标器GNSS浮标    
Abstract:

High precision coastal altimetry by using satellite radar altimeter faces many problems,re-construction of satellite radar altimeter’s coastal return waveforms are contaminated by the return waveforms from the land and building satellite radar altimeter measurements datum over coastal are key to improve accuracy of coastal altimetry.Introducing a method of re-construct satellite radar altimeter measurements datum over coastal waters based on transponder,taking HY-2 satellite radar altimeter as an example,respectively analyze satellite radar altimeter’s coastal return waveforms are contaminated in coastal waters of more than 20km offshore distance,less than 2km offshore distance and 2~20 km offshore distance,then induce the accuracy of building satellite radar altimeter measurements datum over coastal waters in the theory.The HY-2 radar altimeter’s return waveforms data acquired from July 5,2012 in Tangshan’s coastal waters in the in-orbit calibration test,firstly observe HY-2 radar altimeter’s return waveforms forworded by transponder over coastal waters,the results show that:the feasibility of the method presented in this paper is verified,the method will help to improve accuracy of coastal altimetry.

Key words: Coastal altimetry    Transponder    GNSS buoy
收稿日期: 2015-08-17 出版日期: 2016-11-25
:  TP 75  
基金资助:

中国科学院院装备项目“海洋二号卫星高度计有源定标器研制”资助。

通讯作者: 郭伟(1967-),男,吉林长春人,研究员,主要从事微波遥感技术研究。 Email:guowei@mirslab.cn。    
作者简介: 谌华(1979-),男,湖北十堰人,助理研究员,主要从事微波遥感应用研究。Email:e_chenhua@163.com。
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引用本文:

谌华,郭伟,万珺之,赵飞,王彩云. 基于有源定标器的卫星雷达高度计近海测高基准重建方法研究[J]. 遥感技术与应用, 2016, 31(5): 912-918.

Chen Hua,Guo Wei,Wan Junzhi,Zhao Fei,Wang Caiyun. Research on the Method of Re-construct Satellite Radar Altimeter Measurements Datum over Coastal Waters based on Transponder. Remote Sensing Technology and Application, 2016, 31(5): 912-918.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2016.5.0912        http://www.rsta.ac.cn/CN/Y2016/V31/I5/912

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