The impact of curved satellite tracks on SAR focusing

Author

Mohr, Johan ; Madsen, Soren

Author_Institution

Dept. of Electromagnetic Syst., Tech. Univ. Denmark, Lyngby, Denmark

Volume

1

fYear

2000

fDate

2000

Firstpage

87

Abstract

This paper addresses the geometric effect of processing single look complex synthetic aperture radar (SAR) data to a reference squint angle different from that given by the center of the real antenna beam. For data acquired on a straight flight line, the required transformation of radar coordinates from one Doppler reference to another is independent of the target elevation but for data acquired from a satellite orbit over a rotating Earth that is not true. Also the effect of ignoring Earth rotation is addressed

Keywords

geophysical techniques; radar theory; remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; Earth rotation; SAR; SAR focusing; curved satellite track; curved track; geometric effect; geophysical measurement technique; land surface; radar remote sensing; reference squint angle; single look complex synthetic aperture radar; spaceborne radar; synthetic aperture radar; terrain mapping; Earth; Equations; Frequency; Geometry; Radar antennas; Radar tracking; Satellites; Synthetic aperture radar; Target tracking; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International

Conference_Location

Honolulu, HI

Print_ISBN

0-7803-6359-0

Type

conf

DOI

10.1109/IGARSS.2000.860430

Filename

860430