Improvement of ScanSAR interferometric processing

Author

Miyawaki, Manabu ; Kimura, Tomohiro

Author_Institution

NEC Aerosp. Syst. Ltd., Fuchu, Japan

fYear

2013

fDate

21-26 July 2013

Firstpage

334

Lastpage

337

Abstract

ScanSAR ScanSAR differential interferometric technique is a very powerful tool in order to detect the wide crustal deformation caused by huge earthquakes. We tried to detect the crustal deformation caused by 2011 Japan Tohoku earthquake (March 11 2011, Mw 9.0) using the data of ALOS/PALSAR ScanSAR mode. We processed ScanSAR interferometry based on full aperture imaging method [1]. However, only poor interferogram was obtained, because of severe interferometric conditions and the steep terrain in processing area. In order to improve interferometric quality, we tried the interferometric processing using the time-domain back projection approach, and range and azimuth filtering. In this paper, the result of ScanSAR ScanSAR interferometry based on time-domain back projection method is reported.

Keywords

Earth crust; deformation; earthquakes; geophysical signal processing; radar interferometry; remote sensing by radar; synthetic aperture radar; AD 2011 03 11; ALOS-PALSAR ScanSAR mode data; Japan Tohoku earthquake; ScanSAR differential interferometric technique; ScanSAR interferometric processing; azimuth filtering; earthquake induced crustal deformation; full aperture imaging method; interferometric quality; range filtering; time domain back projection method; Apertures; Azimuth; Earthquakes; Filtering; Interferometry; Orbits; Time-domain analysis; ALOS; PALSAR; ScanSAR; differential interferometry;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6721160

Filename

6721160