A statistical tomographic approach to synthetic aperture radar image reconstruction

Author

Çetin, Müjdat ; Karl, William C.

Author_Institution

Dept. of Electr. & Comput. Eng., Boston Univ., MA, USA

Volume

1

fYear

1997

Firstpage

845

Abstract

We formulate the spotlight-mode synthetic aperture radar (SAR) imaging problem as a maximum a posteriori (MAP) estimation problem. Our statistical perspective offers an alternative to standard SAR processing techniques by incorporating prior knowledge about either the data quality or the underlying reflectivity function. In our formulation we consider exploiting the similarity between computer assisted tomography (CAT) and spotlight-mode SAR, which was first exposed by Munson et al. (1983). We present the effectiveness of the proposed approach by imagery formed from simulated spotlight-mode SAR data

Keywords

computerised tomography; electromagnetic wave reflection; image reconstruction; image resolution; radar imaging; remote sensing by radar; statistical analysis; synthetic aperture radar; CAT; MAP estimation; SAR imaging; computer assisted tomography; data quality; high resolution images; image reconstruction; maximum a posteriori estimation; reflectivity function; simulated spotlight-mode SAR data; statistical tomographic approach; synthetic aperture radar; Chirp; Geometry; Image reconstruction; Multidimensional signal processing; Radar imaging; Radar signal processing; Reflectivity; Signal processing algorithms; Synthetic aperture radar; Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1997. Proceedings., International Conference on

Conference_Location

Santa Barbara, CA

Print_ISBN

0-8186-8183-7

Type

conf

DOI

10.1109/ICIP.1997.648098

Filename

648098