中文摘要：

针对传统基线网络构建方法易出现长距离基线边和低质量永久散射体点,且基线边信息存储过程中不易检测出重复边的问题,该文对永久散射体干涉测量技术中整体基线网络布设及基线边信息存储算法开展研究。采用附有距离限制原则的Delaunay三角形布设方法,可有效剔除长距离基线边和低质量永久散射体点;利用邻接矩阵模型算法进行基线边信息存储,可实现重复边的检测,进而提高运算效率。利用河南地区PALSAR影像中提取出的永久散射体点及预先安装布设的角反射器点进行整体基线网络布设及信息存储试验,结果表明获取的地表线性速率精度达到2mm/a,可为永久散射体干涉测量变形监测中差分函数相位模型的建立提供必要前提,为研究区域时间序列变形结果的反演提供有利保证。

英文摘要：

The paper focuses on the construction of integrated baseline network and baseline information storage algorithm.Since the long distance baseline and low quality PS points will be included in the result using the conventional baseline construction algorithm,and the repeated baseline cannot be eliminated from the baseline information storage algorithm which will decrease the deformation inversion precision and operation efficiency,a network construction algorithm based on distance-limited Delaunay triangulation principle was implemented in the paper,which could eliminate the long distance baseline and low quality PS with the baseline coherence factor as the quality assessment index.Using adjacent array model to store the baseline information,the repeated baseline could be eliminated effectively which could increase the operation efficiency.In order to validate the feasibility of the algorithm,integral baseline network construction and information storage experiment were carried out on the PS points detected from the Henan PALSAR images and CR points installed preliminarily in the area.The result showed that the ground deformation velocity accuracy was 2mm/a,which could provide precondition to the phase difference model construction in the deformation inversion algorithm and could engage for the inversion of region time series deformation result.