基于时间序列高分辨率INSAR建筑物高度信息提取

发布时间：2018-03-05 03:37

本文选题：时间序列　切入点：InSAR　出处：《辽宁工程技术大学》2013年硕士论文　论文类型：学位论文

【摘要】：近年来,遥感技术已成为城市建筑高度信息获取、更新的重要手段。随着各种新型传感器相继出现,建筑物高度信息的获取方法也越来越多,但是各种手段在生产效率以及经济效益方面都有其优势和局限性。合成孔经雷达干涉测量(InSAR)技术致力于从复杂的地物场景中获取地表三维信息和细微运动信息,开拓了卫星遥感技术对地观测的先河。时间序列InSAR(永久散射体雷达干涉测量,简称PSI或时序InSAR)技术能够克服去相干因素的影响并增加对不同相位成分的区分能力,反演出精确的长时间缓慢地表形变,已在众多领域中取得良好应用。随着新一代高分辨率雷达卫星陆续升空,时序InSAR技术迎来了新的发展。本文从城市建筑物高度获取的实际需求出发,旨在探索出一种基于时间序列InSAR技术,从高分辨率SAR影像上提取建筑物高度的方法。为此,本文主要开展如下工作： (1)介绍时间序列InSAR技术的基础理论知识。简要阐述了InSAR、DInSAR、PSI的基本原理和处理流程,并重点分析了一种改进PSI技术：斯坦福多时相干涉SAR技术的算法模型。 (2)从干涉相位统计分析出发,提出了一种基于时间序列高分辨率InSAR建筑物高度信息提取的模型与方法。 (3)基于给出时间序列InSAR测高模型,获取天津市北辰区典型建筑高度信息,并通过实测数据验证了该方法的可行性和有效性。
[Abstract]:In recent years, remote sensing technology has become an important means of obtaining and updating urban building height information. However, all kinds of methods have their advantages and limitations in terms of production efficiency and economic benefits. The synthetic aperture radar interferometry (InSAR) technology is dedicated to obtaining 3D information and fine motion information from complex ground scene. The time series PSI (permanent scatterer Radar Interferometry) technique can overcome the influence of decoherence factors and increase the ability to distinguish different phase components. Accurate and slow surface deformation over a long period of time has been well applied in many fields. As the new generation of high-resolution radar satellites have been launched one after another, The time series InSAR technology has come into new development. Based on the actual requirement of obtaining the height of urban buildings, this paper aims to explore a method of extracting the height of buildings from high resolution SAR images based on time series InSAR technology. The main work of this paper is as follows:. This paper introduces the basic theoretical knowledge of time series InSAR technology, briefly describes the basic principle and processing flow of InSar InSAR, and emphatically analyzes an improved PSI technology, the algorithm model of Stanford multitemporal interference SAR technology. 2) based on the statistical analysis of interference phase, a model and method for extracting height information of InSAR building based on time series is presented. Based on the time series InSAR altimeter model, the information of typical building height in Beichen District of Tianjin is obtained. The feasibility and effectiveness of this method are verified by the measured data.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P237

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