本文選題：時(shí)間序列　切入點(diǎn)：InSAR　出處：《遼寧工程技術(shù)大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：近年來,遙感技術(shù)已成為城市建筑高度信息獲取、更新的重要手段。隨著各種新型傳感器相繼出現(xiàn),建筑物高度信息的獲取方法也越來越多,但是各種手段在生產(chǎn)效率以及經(jīng)濟(jì)效益方面都有其優(yōu)勢和局限性。合成孔經(jīng)雷達(dá)干涉測量(InSAR)技術(shù)致力于從復(fù)雜的地物場景中獲取地表三維信息和細(xì)微運(yùn)動(dòng)信息,開拓了衛(wèi)星遙感技術(shù)對(duì)地觀測的先河。時(shí)間序列InSAR(永久散射體雷達(dá)干涉測量,簡稱PSI或時(shí)序InSAR)技術(shù)能夠克服去相干因素的影響并增加對(duì)不同相位成分的區(qū)分能力,反演出精確的長時(shí)間緩慢地表形變,已在眾多領(lǐng)域中取得良好應(yīng)用。隨著新一代高分辨率雷達(dá)衛(wèi)星陸續(xù)升空,時(shí)序InSAR技術(shù)迎來了新的發(fā)展。本文從城市建筑物高度獲取的實(shí)際需求出發(fā),旨在探索出一種基于時(shí)間序列InSAR技術(shù),從高分辨率SAR影像上提取建筑物高度的方法。為此,本文主要開展如下工作： (1)介紹時(shí)間序列InSAR技術(shù)的基礎(chǔ)理論知識(shí)。簡要闡述了InSAR、DInSAR、PSI的基本原理和處理流程,并重點(diǎn)分析了一種改進(jìn)PSI技術(shù)：斯坦福多時(shí)相干涉SAR技術(shù)的算法模型。 (2)從干涉相位統(tǒng)計(jì)分析出發(fā),提出了一種基于時(shí)間序列高分辨率InSAR建筑物高度信息提取的模型與方法。 (3)基于給出時(shí)間序列InSAR測高模型,獲取天津市北辰區(qū)典型建筑高度信息,并通過實(shí)測數(shù)據(jù)驗(yàn)證了該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.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P237

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