| 机载InSAR区域网平差数学模型研究 |
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| 引用本文： | 岳昔娟,韩春明,窦长勇,赵迎辉.机载InSAR区域网平差数学模型研究[J].武汉大学学报(信息科学版),2015,40(1):59-63. |
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| 作者姓名： | 岳昔娟 韩春明 窦长勇 赵迎辉 |
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| 作者单位： | 1中国科学院遥感与数字地球研究所北京 10009 |
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| 基金项目： | 国家自然科学基金资助项目(41201481);中国科学院对地观测与数字地球科学中心主任科学基金资助项目(ZZCE-ODE2012HT022,025);对地观测技术国家测绘地理信息局重点实验室开放课题资助项目(K201202);地理空间信息工程国家测绘地理信息局重点实验室经费资助项目(201321)~~ |
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| 摘 要： | 研究了机载InSAR高精度三维定位数学模型及区域网平差误差模型,分析了机载InSAR区域网平差参数、观测值及定权方法。利用自主研发的机载InSAR区域网平差软件系统完成了四川绵阳测区分辨率为0.5m的4条航带共76景影像约500km2的机载InSAR区域网平差实验,在大面积、稀少控制条件下满足1∶1万DEM、DOM定位精度要求。
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| 关 键 词： | 机载InSAR 区域网平差 三维定位模型 误差模型 精度分析 |
| 收稿时间： | 2013-05-16 |
Mathematical Model of Airborne InSAR Block Adjustment |
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| YUE Xijuan;HAN Chunming;DOU Changyong;ZHAO Yinghui.Mathematical Model of Airborne InSAR Block Adjustment[J].Geomatics and Information Science of Wuhan University,2015,40(1):59-63. |
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| Authors: | YUE Xijuan;HAN Chunming;DOU Changyong;ZHAO Yinghui |
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| Institution: | 1Institute of Remote Sensing and Digital Earth CAS Beijing 100094 China |
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| Abstract: | High-precision surface elevation information can be obtained efficiently by airborne InSAR systems. Airborne InSAR systems have been an important means for remote sensing data acquisition and mapping in the areas where surveying and mapping is currently difficult.A three dimensional positioning and error model for airborne InSAR block adjustment were researched.Observations，weights determination and adjustment parameters were analyzed.In an experiment，76 airborne In-SAR images at 0.5 m resolution were used generate a block of 4 strips by 19 rows.The results show that the positional accuracy of a DEM and DOM at scale of 1:10 000 were achieved for large areas with sparse control points. |
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