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 language | English |
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Title of host publication | Living Planet Symposium, Proceedings of the conference |
Subtitle of host publication | Prague, Czech Republic |
Editors | L. Ouwehand |
Publisher | European Space Agency |
Pages | 398-398 |
Volume | 740 |
ISBN (Electronic) | 978-92-9221-305-3 |
Publication status | Published - 1 Aug 2016 |
Event | Living Planet Symposium 2016 - Prague, Czech Republic Duration: 9 May 2016 → 13 May 2016 |
Conference
Conference | Living Planet Symposium 2016 |
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Country/Territory | Czech Republic |
City | Prague |
Period | 9/05/16 → 13/05/16 |
Keywords
- Data visualisation
- Image processing and data fusion
- In SAR
- Interferometry