Approach to velocity and acceleration measurement in the Bi-Directional SAR imaging mode

This paper presents an initial analysis of the possibilities for velocity and acceleration measurement with the Bi-Directional SAR imaging mode (BiDi). It comprises single satellite single path acquisitions as well as a constellation of two satellites. The translational velocity components into azim...

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Bibliographic Details
Main Authors: Mittermayer, J., Prats, P., Wollstadt, S., Baumgartner, S., Lopez-Dekker, P., Broquetas, A., Makhoul Varona, Eduardo, Krieger, G., Moreira, A.
Format: Conference Proceeding
Language:English
Subjects:
Azimuth
Bi-Directional SAR
Doppler effect
Enginyeria de la telecomunicació
History
Marine vehicles
Radar
Radiocomunicació i exploració electromagnètica
Remote-sensing images
SAR
Satellites
Synthetic aperture radar
Teledetecció
TerraSARX
Velocity Estimation
Velocity measurement
Àrees temàtiques de la UPC
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Summary:This paper presents an initial analysis of the possibilities for velocity and acceleration measurement with the Bi-Directional SAR imaging mode (BiDi). It comprises single satellite single path acquisitions as well as a constellation of two satellites. The translational velocity components into azimuth and range directions are simulated. A BiDi approach for measuring the azimuth velocity from one satellite with one receiving channel is proposed. Image examples acquired with the TerraSAR-X (TSX) and TanDEM-X (TDX) satellites show velocity and acceleration effects on ships and the proposed BiDi velocity approach is verified. Interferometric fringes were observed on anchoring ships. A first approach into the understanding of rotational effects was achieved by simulation of rotational fringes.
ISSN:2153-6996
2153-7003
DOI:10.1109/IGARSS.2012.6352045