Maximum likelihood estimation of SAR Azimuth Antenna by means of Persistent Point Scatterers

Author

Guccione, Pietro ; Guarnieri, Andrea Monti

Author_Institution

Dipt. di Elettrotec. ed Elettron., Politec. di Bari, Bari, Italy

fYear

2012

fDate

22-27 July 2012

Firstpage

5494

Lastpage

5497

Abstract

The purpose of the paper is to estimate the Azimuth Antenna Pattern by using Persistent Point Scatterers (PPS) selected in a stack of interferometric Synthetic Aperture Radar images. Wide angle antenna pattern is estimated from targets spectra by means of a Maximum Likelihood formulation. PPS are considered a restricted subset of the Persistent Scatterers, for which the point-shape feature is further required. A model for PPS is provided and experimentally validated; antenna estimation results are presented for both simulated and real X-band Cosmo Skymed data.

Keywords

antenna radiation patterns; geophysical techniques; maximum likelihood estimation; radar antennas; radar imaging; radar interferometry; remote sensing by radar; synthetic aperture radar; PPS; SAR azimuth antenna; X-band Cosmo Skymed data; antenna estimation; interferometric synthetic aperture radar image; maximum likelihood estimation; maximum likelihood formulation; persistent point scatterers; point-shape feature; wide angle antenna pattern; Abstracts; Antennas; Azimuth; Indexes; Azimuth Antenna Estimation; Maximum Likelihood; Persistent Point Scatterers; Spotlight SAR focusing;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6352362

Filename

6352362