| 星载InSAR在地形测绘中的误差来源分析 |
| |
| 引用本文： | 李涛,唐新明,高小明,陈乾福.星载InSAR在地形测绘中的误差来源分析[J].测绘通报,2017,0(11):37. |
| |
| 作者姓名： | 李涛 唐新明 高小明 陈乾福 |
| |
| 作者单位： | 国家测绘地理信息局卫星测绘应用中心, 北京 100048 |
| |
| 基金项目： | 国家重点研发计划（2017YFB0502700）；国家民用航天计划（D010102）；国家基础测绘科技计划（2016KJ0204；2017KJ0204）；测绘地理信息公益性行业科研专项经费（201512022）；国网北京经济技术研究院自主投入科技项目 |
| |
| 摘 要： | 合成孔径雷达干涉（InSAR）技术是最有效的测图手段之一，然而InSAR地形测绘过程中极易受到各类误差的影响。本文探讨了国产SAR卫星无法业务化干涉的主要原因，并从卫星的干涉几何出发，研究了InSAR在地形测绘中的误差来源，研究表明，主星定轨误差、斜距测量误差、基线测量误差以及相位误差是地形测绘中的一级误差源。最终对一级误差带来的高程误差进行了定量分析，并对部分一级误差进行了分解，定位了二级误差源。
|
| 关 键 词： | InSAR 卫星测绘 DEM |
| 收稿时间： | 2017-09-06 |
| 修稿时间： | 2017-10-01 |
Spaceborne InSAR Topographic Surveying and Mapping Error Sources Analysis |
| |
| LI Tao,TANG Xinming,GAO Xiaoming,CHEN Qianfu.Spaceborne InSAR Topographic Surveying and Mapping Error Sources Analysis[J].Bulletin of Surveying and Mapping,2017,0(11):37. |
| |
| Authors: | LI Tao TANG Xinming GAO Xiaoming CHEN Qianfu |
| |
| Institution: | Satellite Surveying and Mapping Application Center, National Administration of Surveying, Mapping and Geoinformation, Beijing 100048, China |
| |
| Abstract: | Synthetic aperture radar interferometric is one of the most efficient methods in global surveying and mapping(SAM) applications.Howerer,InSAR is easily affected by kinds of error sources in SAM applications.In this paper,We discuss the reason why domestic SAR satellites fail to provide interferograms operationally. Then we provide the error sources given the interferometric geometry. The first-level error sources of InSAR are defined as master orbital error,slant range error,baseline vector error as well as unwrapped phase error. The error sources are decomposed so that the errors of the second-lever are revealed and analyzed in the paper. |
| |
| Keywords: | InSAR satellite surveying and mapping DEM |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《测绘通报》浏览原始摘要信息 |
| 点击此处可从《测绘通报》下载免费的PDF全文 |
