| 单基线TanDEM-X InSAR相干性反演森林高度EI北大核心CSCD |
| |
| 引用本文： | 张涛,朱建军,付海强,汪长城.单基线TanDEM-X InSAR相干性反演森林高度EI北大核心CSCD[J].测绘学报,2022,51(9):1931-1941. |
| |
| 作者姓名： | 张涛 朱建军 付海强 汪长城 |
| |
| 作者单位： | 中南大学地球科学与信息物理学院, 湖南 长沙 410083 |
| |
| 基金项目： | 国家自然科学基金（4181001033；41820104005；41904004；42030112）；中南大学研究生自主探索创新项目（2021zzts0829） |
| |
| 摘 要： | 由RVoG模型演变的SINC函数模型运用到TanDEM-X InSAR数据反演森林高度时面临观测信息不足的问题,且无法适应不同的森林场景。本文针对这一问题,提出小范围LiDAR数据辅助下基于TanDEM-X InSAR相干性的森林高度反演方法,此方法无须全局高精度DEM产品提供地表相位信息而仅利用相干性即可获取森林高度信息。为验证此方法的可行性,采用西班牙境内两个典型试验区的TanDEM-X InSAR数据进行验证,并利用LiDAR树高数据进行精度评定。结果表明,单基线TanDEM-X InSAR相干性可用于反演森林高度,两个试验区的精度分别为2.34 m和1.74 m。
|
| 关 键 词： | 森林高度 合成孔径雷达干涉测量 TanDEM-X SINC函数模型 C-SINC模型 |
| 收稿时间： | 2021-05-26 |
| 修稿时间： | 2022-03-02 |
Forest height inversion with single-baseline TanDEM-X InSAR coherence |
| |
| ZHANG Tao,ZHU Jianjun,FU Haiqiang,WANG Changcheng.Forest height inversion with single-baseline TanDEM-X InSAR coherence[J].Acta Geodaetica et Cartographica Sinica,2022,51(9):1931-1941. |
| |
| Authors: | ZHANG Tao ZHU Jianjun FU Haiqiang WANG Changcheng |
| |
| Institution: | School of Geosciences and Info-Physics, Central South University, Changsha 410083, China |
| |
| Abstract: | Model-errors and inability of adapting to different forest scenes appear when the SINC function model simplified from RVoG model is applied to retrieve forest height with TanDEM-X interferometric SAR data. To solve the problem, a method of forest height inversion based on TanDEM-X InSAR coherence with the aid of a subset of LiDAR data is proposed, which is independent on global high-precision DEM products to provide ground phase information and uses coherence to obtain forest height only. In order to verify the feasibility of the method, TanDEM-X InSAR acquisitions obtained in two typical study sites in Spain are experimented, while LiDAR data is used for validation. The results show forest height is obtainable based on the single-baseline TanDEM-X InSAR coherence, whose accuracy are 2.34 m and 1.74 m respectively. |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《测绘学报》浏览原始摘要信息 |
| 点击此处可从《测绘学报》下载免费的PDF全文 |
|
