Share Email Print
cover

Proceedings Paper

Ambiguities analysis in SAR tomography
Author(s): Ziwei Wang; Hong Zhang; Chao Wang; Yixian Tang; Bo Zhang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Synthetic aperture radar tomography (TomoSAR) is typically used to retrieve elevation, deformation, and other key information by separating scatters of the same slant range in multiple baseline SAR images. In this paper, we investigate two kinds of ambiguities for TomoSAR. Rank-1 ambiguity, as the first one we concerned, is due to the baseline distribution of the SAR image dataset which makes the steering matrix out of full rank. It will result in false alarms appearing in a permanent distance. However, an example using the TomoSAR imaging parameters shows this ambiguity makes no sense in most cases. The second ambiguity refers to the coherence of scatters contained in one pixel. In simulation experiment, the coherence will enhance the side lobes of the spectrum, even make the real peaks fused.

Paper Details

Date Published: 21 October 2014
PDF: 6 pages
Proc. SPIE 9243, SAR Image Analysis, Modeling, and Techniques XIV, 924313 (21 October 2014); doi: 10.1117/12.2067140
Show Author Affiliations
Ziwei Wang, Institute of Remote Sensing and Digital Earth (China)
Hong Zhang, Institute of Remote Sensing and Digital Earth (China)
Chao Wang, Institute of Remote Sensing and Digital Earth (China)
Yixian Tang, Institute of Remote Sensing and Digital Earth (China)
Bo Zhang, Institute of Remote Sensing and Digital Earth (China)


Published in SPIE Proceedings Vol. 9243:
SAR Image Analysis, Modeling, and Techniques XIV
Claudia Notarnicola; Simonetta Paloscia; Nazzareno Pierdicca, Editor(s)

© SPIE. Terms of Use
Back to Top