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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Pinheiro, M. Prats, P. Scheiber, R. Nannini, M. Reigber, A. |
| Copyright Year | 2009 |
| Description | Author affiliation: German Aerospace Center (DLR), Microwave and Radar Institute, Germany (Pinheiro, M.; Prats, P.; Scheiber, R.; Nannini, M.; Reigber, A.) |
| Abstract | The study of data acquired over a circular trajectory has raised an increasing interest in the SAR community. Two main reasons summarize the interest in such geometry. First, sub-wavelength resolution can be achieved, as the targets in the spotted area are observed under a 360º aperture. Second, the use of the information from different azimuthal directions allows one to obtain information of the scene in the third dimension, making possible a 3D target reconstruction. In any case, both applications require certain target reflectivity homogeneity. This paper shows several processing results and analyzes the potentials and limitations of circular SAR to perform tomography of semi-transparent media. Special processing aspects, like the estimation of residual motion errors due to inaccuracies in the navigation data, are also addressed. Data acquired at L-band by DLR's E-SAR system are used to demonstrate the high resolution and tomographic imaging capabilities of circular SAR. The results include the tomogram of a Luneburg lens, as well as preliminary results over man-made targets and vegetation. |
| File Size | 2286087 |
| File Format | |
| ISBN | 9781424433940 |
| DOI | 10.1109/IGARSS.2009.5418239 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-07-12 |
| Publisher Place | South Africa |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Tomography Image reconstruction Geometry Apertures Layout Reflectivity Performance analysis Motion estimation Navigation L-band SAR tomography Airborne SAR Circular SAR SAR processing |
| Content Type | Text |
| Resource Type | Article |
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