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| 星载高分辨率合成孔径雷达影像纠正技术 | |
| 引用本文： | 尤淑撑,刘顺喜,徐宗学. 星载高分辨率合成孔径雷达影像纠正技术[J]. 遥感信息, 2011, 0(6): 57-60. DOI: 10.3969/j.issn.1000-3177.2011.06.012 |
| 作者姓名： | 尤淑撑 刘顺喜 徐宗学 |
| 作者单位： | 1. 北京师范大学水科学研究院,北京100875;中国土地勘测规划院,北京100035 2. 中国土地勘测规划院,北京,100035 3. 北京师范大学水科学研究院,北京,100875 |
| 基金项目： | 国土资源部百名科技人才计划项目，国家科技支撑计划，国家高技术研究发展计划 |
| 摘 要： | 为检测TERRASAR、COSMO SkyMed、RADARSAT-2等星载高分辨率合成孔径雷达影像(SAR)在土地利用调查监测中的适用性,该文针对高分辨率SAR数据和产品特性,提出了控制点选取方法,分析了不同纠正模型的应用效果。试验表明高分辨率SAR几何纠正一般需要10～15个控制点,1m聚束模式纠正中误差约3m～5m,3m条带模式纠正中误差约5m～8m,分别满足1∶1万和1∶2.5万土地调查监测几何精度要求。研究结果为构建基于高分辨率SAR数据土地利用调查监测应用技术流程和促进高分辨率极化SAR数据业务化应用奠定了基础。 |
| 关 键 词： | 遥感 SAR 土地利用遥感影像图 |
Geo-rectification Method of High Spatial Resolution SAR Data |
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| YOU Shu-cheng,LIU. Shun-xi,XU Zong-xue. Geo-rectification Method of High Spatial Resolution SAR Data[J]. Remote Sensing Information, 2011, 0(6): 57-60. DOI: 10.3969/j.issn.1000-3177.2011.06.012 | |
| Authors: | YOU Shu-cheng LIU. Shun-xi XU Zong-xue |
| Affiliation: | ①(① College of Water Sciences,Beijing 100875; ② China Land Surveying ＆ Planning Institute,Beijing 100035) |
| Abstract: | In order to test suitability of the high spatial resolution SAR（1m/3m） for land dynamic change monitoring,in this paper the TERRASAR、COSMO SkyMed and RADARSAT-2 data were used for deep study.The critic problems of geo-rectification of the high spatial resolution SAR data are analyzed;the principle and method of GCP collection are proposed;different SAR geometric correction models are used for comparison and their suitability is discussed.The results show that 10-15 GCP is required to obtain a good result of geometric correction.Suggested geometric correction method can obtain good result,that RMSE for 1m spot-line mode SAR data is 3-5m and 5-8m for 3m strip mode SAR data which are suitable for 1∶10,000 and 1∶25,000 mapping scales respectively.The results are very important to make good use of SAR data in land use dynamic change monitoring project. |
| Keywords: | remote sensing SAR land use image |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |