| 机载毫米波InSAR测绘困难地区地形测图实践 |
| |
| 引用本文： | 韦立登,李永杰,孙中昶,高建.机载毫米波InSAR测绘困难地区地形测图实践[J].南京气象学院学报,2020,12(2):246-255. |
| |
| 作者姓名： | 韦立登 李永杰 孙中昶 高建 |
| |
| 作者单位： | 北京无线电测量研究所, 北京, 100854,中国科学院空天信息创新研究院/数字地球重点实验室, 北京, 100094;中国地质大学 土地科学技术学院, 北京, 100083,中国科学院空天信息创新研究院/数字地球重点实验室, 北京, 100094;海南省地球观测重点实验室, 三亚, 572029,南京邮电大学 地理与生物信息学院, 南京, 210003 |
| |
| 基金项目： | 海南省重点研发计划项目（ZDYF2019008） |
| |
| 摘 要： | 干涉合成孔径雷达（Interferometric Synthetic Aperture Radar，InSAR）已成为获取高精度数字正射影像图（Digital Orthophoto Map，DOM）和数字表面模型（Digital Surface Model，DSM）的关键技术之一，其不受天气状况的影响，可以全天时、全天候进行数据获取.机载双天线毫米波InSAR不受失相关的影响，具有小体积、高分辨率、机动灵活等特点，可以实现大尺度、高精度成像.本研究利用机载双天线毫米波InSAR通过干涉批处理、区域网平差、地理编码、图像拼接镶嵌等步骤生成了贵州施秉试验区（丘陵、山地）和四川邛崃试验区（高山地）高精度的DOM与DSM，并利用地面控制点（GCPs，Ground Control Points）进行了精度验证，验证结果表明获取的DSM精度符合1∶5 000地形图绘制要求，表明了机载双天线毫米波InSAR具备生成不同地形的DOM/DSM的能力，为解决困难地区DOM/DSM数据缺失问题提供了新的技术手段.
|
| 关 键 词： | 机载毫米波InSAR 区域网平差 高精度 数字表面模型 数字正射影像图 |
| 收稿时间： | 2019/10/21 0:00:00 |
On topographic surveying in tough areas using airborne millimeter-wave InSAR |
| |
| WEI Lideng,LI Yongjie,SUN Zhongchang and GAO Jian.On topographic surveying in tough areas using airborne millimeter-wave InSAR[J].Journal of Nanjing Institute of Meteorology,2020,12(2):246-255. |
| |
| Authors: | WEI Lideng LI Yongjie SUN Zhongchang and GAO Jian |
| |
| Institution: | Beijing Institute of Radio Measurement, Beijing 100854,Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094;School of Land Science and Technology, China University of Geosciences, Beijing 100083,Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094;Hainan Provincial Key Laboratory of Earth Observation, Sanya 572029 and School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing 210003 |
| |
| Abstract: | Interferometric synthetic aperture radar (InSAR) has become one of the key technologies to obtain high-precision Digital Orthophoto Map (DOM) and Digital Surface Model (DSM).It is not affected by weather conditions and can acquire data in all day and weather conditions.Airborne dual-antenna millimeter-wave InSAR is independent of loss-of-correlation which has the characteristics of small size,high resolution,high flexibility,etc.And it can obtain large-scale and high-precision images.This paper uses airborne dual-antenna millimeter-wave InSAR to acquire high-precision DOM and DSM in Shibing experimental area of Guizhou (mountainous) and Qionglai experimental area of Sichuan (alpine) through interference processing,block adjustment,geocoding,and image mosaic.Besides,the ground control points (GCPs) are used to verify the accuracy.The results show that the accuracy of DSM obtained meets the requirement of 1:5000 terrain mapping.It has been proven that the airborne dual-antenna millimeter-wave InSAR has the ability to generate DOM/DSM with different terrains,which provides a new technical means for solving the lack of DOM/DSM data in tough areas. |
| |
| Keywords: | airborne millimeter-wave InSAR block adjustment high precision digital surface model (DSM) digital orthophoto map (DOM) |
|
| 点击此处可从《南京气象学院学报》浏览原始摘要信息 |
| 点击此处可从《南京气象学院学报》下载免费的PDF全文 |
|
