Work

Automatic Detection and Positioning of Ground Control Points Using TerraSAR-X Multiaspect Acquisitions

Year: 2018

Type: article

Abstract: Geodetic stereo synthetic aperture radar (SAR) is capable of absolute 3-D localization of natural persistent scatterers, which allows for ground control point (GCP) generation using only SAR data. The prerequisite for the method to achieve high-precision results is the correct detection of common scatterers in SAR images acquired from different viewing geometries. In this contribution, we describe three strategies for automatic detection of identical targets in SAR images of urban areas taken from different orbit tracks. Moreover, a complete workflow for automatic generation of large number of GCPs using SAR data is presented and its applicability is shown by exploiting TerraSAR-X high-resolution spotlight images over the city of Oulu, Finland, and a test site in Berlin, Germany.

Source: IEEE Transactions on Geoscience and Remote Sensing

DOI: 10.1109/tgrs.2017.2769078

Authors: Sina Montazeri, Christoph Gisinger, Michael Eineder, Xiao xiang Zhu

Institutions: Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR), Technical University of Munich

Language: English

Topic: Synthetic Aperture Radar (SAR) Applications and Techniques

Subfield: Geophysics

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, Helmholtz-Gemeinschaft, Munich Aerospace, H2020 European Research Council

Awards: G1699902684, G403728962