A scanning order design method of jumping spotlight SAR to simplify imaging processing

Author

Xu, Huaping ; Xiao, Zhongyuan ; Gao, Jing ; Li, Chunsheng ; Yu, Ze

Author_Institution

Sch. of Electron. & Inf. Eng., Beihang Univ., Beijing, China

fYear

2012

fDate

22-27 July 2012

Firstpage

3959

Lastpage

3962

Abstract

Spotlight synthetic aperture radar (SAR) can obtain high resolution SAR image but the observation area is restricted. This paper presents a new imaging mode named jumping spotlight SAR to achieve high resolution and wide swath simultaneously. In jumping spotlight mode, high resolution SAR image is acquired by antenna beams steering, and meanwhile the wide observation swath is realized through antenna beams scanning in range and azimuth directions. The imaging theory of jumping spotlight SAR is given based on the data acquisition geometry and some of the imaging difficulties are analyzed. Then the design principle of the antenna beams scanning order is proposed in this imaging mode. Simulation results show that the scanning order design rule can simplify the processing of squint spotlight imaging.

Keywords

beam steering; data acquisition; geometry; image resolution; radar imaging; synthetic aperture radar; antenna beams steering; data acquisition geometry; high resolution SAR image; image processing; jumping spotlight SAR; scanning order design method; synthetic aperture radar; Azimuth; Data acquisition; Directive antennas; Image resolution; Imaging; Radar imaging; Synthetic aperture radar; SAR; high resolution; jumping spotlight; squint imaging; wide swath;

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.2012.6350544

Filename

6350544