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Qualitative distinction between terrain deformations and processing errors, and quantitative description of deformations for the 3-pass interferometry

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F07%3A01132903" target="_blank" >RIV/68407700:21110/07:01132903 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Qualitative distinction between terrain deformations and processing errors, and quantitative description of deformations for the 3-pass interferometry

  • Original language description

    The 3-pass interferometry means that we use three scenes where one pair (topo pair) is considered to have no influence on a deformation. The DEM is already derived in radar coordinates from this pair, and consequently this influence is also subtracted from deformation pair (deformation pair). The topo interferogram must be unwrapped first and then rewrapped in order to have the same height ambiguity as the deformation interferogram. This method is used to remove the topographically induced phase from the interferogram containing topography, deformation and atmosphere. The perpendicular baseline of the topo pair should be longer than that of the deformation pair to prevent that noise is multiplied. The advantage of the 3-pass interferometry is the factthat the whole processing is performed in the master slant range coordinate system and only the coregistration of complex SAR images is necessary. Both pairs (topo and deformation pair) have the same master scene.

  • Czech name

    Kvalitativní rozlišení mezi terénními deformacemi a procesními chybami a kvantitativní popis deformací pro třísnímkovou interferometrii

  • Czech description

    Třísnímková interferometrie znamená, že používáme 3 scény, kde jeden pár se považuje bez vlivu terénních deformací. DMT je odvozen už v radarových souřadnicích tohoto páru a následně je tento vliv subtraktován od deformačního páru. Fáze topo interferogramu musí být nejdříve rozbalena a přizpůsobena podle deformačního interferogramu. Tato metoda se užívá k odstranění topografické části fáze z interferogramu, který zahrnuje topografii, deformace a vliv atmosféry. Oba páry (topo a deformační pár) musí mítstejný master snímek.

Classification

  • Type

    C - Chapter in a specialist book

  • CEP classification

    DE - Earth magnetism, geodesy, geography

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA205%2F06%2F1037" target="_blank" >GA205/06/1037: Application of geoinformation technologies for improvement of rainfall-runoff relationships</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2007

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Book/collection name

    New Developments and Challenges in Remote Sensing

  • ISBN

    978-90-5966-053-3

  • Number of pages of the result

    9

  • Pages from-to

    123-131

  • Number of pages of the book

  • Publisher name

    Millpress

  • Place of publication

    Rotterdam

  • UT code for WoS chapter