使用ERS-1/2干涉测量SAR数据生成DEM

被引：19

作者：

史世平

机构：

[1] 不详

[2] 西安测绘研究所!陕西西安

[3] 不详

来源：

测绘学报 | 2000年 / 04期

关键词：

干涉测量SAR; 最小二乘影像匹配; 相位展开; 数字高程模型;

D O I：

暂无

中图分类号：

P236 [卫星摄影测量与空间摄影测量];

学科分类号：

摘要：

干涉合成孔径雷达 (INSAR)数据已被证明能生产精确的数字高程模型 (DEM)。我们已开发了从单视 SAR复影像数据自动生成数字高程模型的新软件。基于 SAR多视强度影像的最小二乘影像匹配被用于复影像对的配准 ,达到很高的配准精度 (0 .0 1～ 0 .0 2像元精度 )。一种新的计算目标点 3维坐标 (X,Y,Z)的方程还被提出 ,卫星轨道、姿态和基线参数以及相位常数被纳入在方程中并被表示为时间的线性函数 ,利用至少 6个地面控制点能够同时估算这些参数。本文还给出了意大利埃特纳地区 ERS- 1 /2 SAR数据处理结果。

引用

页码：317 / 323

页数：7

共 15 条

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