High-precision 3D geolocation of persistent scatterers with one single-Epoch GCP and LIDAR DSM data

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

4 Citations (Scopus)

Abstract

In persistent scatterer (PS) interferometry, the relatively poor 3D geolocalization precision of the measurement points (the scatterers) is still a major concern. It makes it difficult to attribute the deformation measurements unambiguously to (elements of) physical objects. Ground control points (GCP's), such as corner reflectors or transponders, can be used to improve geolocalization, but only in the range-azimuth domain. Here, we present a method which uses only one GCP, visible in only one single radar acquisition, in combination with a digital surface model (DSM) data to improve the geolocation precision, and to achieve an object snap by projecting the scatterer position to the intersection with the DSM model, in the metric defined by the covariance matrix (i.e. error ellipsoid) of every scatterer.

Original languageEnglish
Title of host publicationLiving Planet Symposium, Proceedings of the conference
Subtitle of host publicationPrague, Czech Republic
EditorsL. Ouwehand
PublisherEuropean Space Agency
Pages398-398
Volume740
ISBN (Electronic)978-92-9221-305-3
Publication statusPublished - 1 Aug 2016
EventLiving Planet Symposium 2016 - Prague, Czech Republic
Duration: 9 May 201613 May 2016

Conference

ConferenceLiving Planet Symposium 2016
CountryCzech Republic
CityPrague
Period9/05/1613/05/16

Keywords

  • Data visualisation
  • Image processing and data fusion
  • In SAR
  • Interferometry

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