High-Resolution SAR Image Generation by Subaperture Processing of FMCW Radar Signal

Author

Navneet, S. ; Roy, Anirban ; Bhattacharya, C.

Author_Institution

Dept. Electron. Eng., Defence Inst. of Adv. Technol., Pune, India

Volume

11

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

1866

Lastpage

1870

Abstract

In this letter, we present a subaperture-based processing scheme for synthetic aperture radar (SAR) imaging using frequency-modulated continuous-wave (FMCW) radar transmission. An efficient two-stage azimuth subaperture processing scheme is proposed for high-resolution SAR image generation. A new bulk range-cell-migration-correction technique is proposed. The algorithms are validated with point target simulations at the X-band and also using real data samples at the C-band. The results show that subaperture-based processing can be used to image extended ground scenes without mosaicing.

Keywords

CW radar; FM radar; radar imaging; synthetic aperture radar; C-band; FMCW radar signal; X-band; bulk range-cell-migration-correction technique; frequency-modulated continuous-wave radar transmission; high-resolution SAR image generation; subaperture processing; synthetic aperture radar imaging; Apertures; Azimuth; Discrete Fourier transforms; Imaging; Radar imaging; Remote sensing; Synthetic aperture radar; Frequency-modulated continuous-wave (FMCW); range cell migration correction (RCMC); subaperture processing; synthetic aperture radar (SAR);

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2014.2312235

Filename

6781581