| 稀少控制下TerraSAR-X影像高精度直接定位方法 |
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| 引用本文： | 魏钜杰,张继贤,赵争,庞蕾.稀少控制下TerraSAR-X影像高精度直接定位方法[J].测绘科学,2011,36(1):58-60,50. |
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| 作者姓名： | 魏钜杰 张继贤 赵争 庞蕾 |
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| 作者单位： | 中国测绘科学研究院;辽宁工程技术大学测绘与地理科学学院; |
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| 基金项目： | 高精度极化干涉SAR数据处理与制图关键技术(2009AA12Z145) |
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| 摘 要： | 基于轨道数据的星载SAR影像直接地理定位技术是解决稀少控制条件下测图处理的重要手段之一,本文基于距离-多普勒(Range-Doppler,R-D)模型和地球物理模型,提出了一种由粗到精的TerraSAR影像直接地理定位方法.首先利用AIRGM算法对SAR影像目标进行粗定位,然后结合低分辨率DEM对SAR影像进行精定位,...
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| 关 键 词： | TerraSAR-X 地理定位 高精度 RD模型 稀少控制 |
High-precisely direct geo-location method for TerraSAR-X image with sparse GCPs |
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| WEI Ju-jie,ZHANG Ji-xian,ZHAO Zheng,PANG Lei.High-precisely direct geo-location method for TerraSAR-X image with sparse GCPs[J].Science of Surveying and Mapping,2011,36(1):58-60,50. |
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| Authors: | WEI Ju-jie ZHANG Ji-xian ZHAO Zheng PANG Lei |
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| Institution: | ①(①Chinese Academy of Surveying & Mapping,Beijing 100039,China;②Liaoning Technical University,Liaoning Fuxin 123000,China) |
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| Abstract: | SAR image direct geo-location based on the orbital data is one of important mapping means in some areas with sparse ground control points(GCPs).This paper proposed a kind of direct positioning method based on the Range-Doppler model and the geophysical model,which will execute two stages to realize the coarse-to-fine geo-location with TerraSAR images.First of all,using the AIRGM algorithm,it processed roughly to obtain the coarse positioning results of objects on SAR images,and then combining with lower-res... |
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| Keywords: | TerraSAR-X geo-location high-precision RD model sparse control |
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