An interferometric quick-look processor

Author

Guarnieri, A. Monti ; Prati, C.

Author_Institution

Dipt. di Elettronica, Politecnico di Milano, Italy

Volume

37

Issue

2

fYear

1999

fDate

3/1/1999 12:00:00 AM

Firstpage

861

Lastpage

866

Abstract

A technique to get medium resolution (40×40 m, on the ground), strip-map synthetic aperture radar (SAR) interferograms and coherence maps close to real-time by means of common UNIX workstations or PCs is presented. The requested efficiency is achieved by the following: 1) exploiting the spectral shift principle to reduce the data rate at the cost of some signal loss; 2) exploiting polyphase filters and integer implementation to get azimuth looks; 3) implementing a fast and robust estimator of coregistering parameters based both on amplitude cross correlation and of looks´ phase mismatch estimate

Keywords

geophysical signal processing; geophysical techniques; geophysics computing; radar imaging; remote sensing by radar; software tools; synthetic aperture radar; terrain mapping; PC; SAR; UNIX workstation; amplitude cross correlation; azimuth look; coherence map; coregistering parameters; data rate reduction; geophysical measurement technique; integer implementation; interferogram; interferometric quick-look processor; land surface; look phase mismatch estimate; medium resolution; polyphase filter; radar imaging; radar remote sensing; robust estimator; spectral shift principle; strip-map; synthetic aperture radar; terrain mapping; Amplitude estimation; Azimuth; Costs; Filters; Parameter estimation; Personal communication networks; Phase estimation; Robustness; Synthetic aperture radar; Workstations;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.752205

Filename

752205