A rotational high-resolution SAR on a tower at multi-frequencies

Author

Hwang, Ji-Hwan ; Kwon, Soon-gu ; Oh, Yisok

Author_Institution

Dept. of Electron. Inf. & Commun. Eng., Hongik Univ., Seoul, South Korea

fYear

2012

fDate

22-27 July 2012

Firstpage

6891

Lastpage

6894

Abstract

A rotational SAR system with the HPS (Hongik Polarimetric Scatterometer) tower platform for multi-frequency bands is presented in this paper. It was designed to obtain high-resolution SAR images using the existing tower platform of HPS and, in additional, 1.6m sub-arm for rotational synthetic aperture. Rotational SAR system was compared to the conventional SAR system using FDTD (finite-difference time-domain) simulations. Performances were measured at L-, C-, and X-bands by analysis of the reconstructed SAR images. Measured resolutions which are extracted from IRF (impulse response function) of targets in the rotational SAR images are (14.8cm, 9.2°) (7.2cm, 4°) and (5.1cm, 2.1°) in range- and cross-range directions at L-, C-, and X-bands, respectively.

Keywords

finite difference time-domain analysis; geophysical image processing; geophysical techniques; image reconstruction; synthetic aperture radar; C-band; FDTD simulations; HPS tower platform; Hongik Polarimetric Scatterometer; IRF; L-band; X-band; cross-range direction; high-resolution SAR images; impulse response function; multifrequency bands; reconstructed SAR image analysis; rotational SAR system; rotational high-resolution SAR; rotational synthetic aperture; Finite difference methods; Image reconstruction; Image resolution; Radar imaging; Radar tracking; Synthetic aperture radar; Time domain analysis; FDTD; HPS tower platform; RotSAR image resolutions; Rotational SAR (RotSAR);

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.2012.6352579

Filename

6352579