A modified RD algorithm for airborne high squint mode SAR imaging

Author

Xiao, Jing ; Hu, Xue-cheng

Author_Institution

Nanjing Res. Inst. of Electron. Technol., Nanjing

fYear

2007

fDate

5-9 Nov. 2007

Firstpage

444

Lastpage

448

Abstract

Based on the imaging geometry of the squint mode, this paper derives a modified range-Doppler (RD) algorithm suited for high squint mode synthetic aperture radar (SAR) imaging in detail. On the basis of the high order range mode, the algorithm realizes the fine focusing of targets by correcting range walk while performing range compression and correcting range curvature in two dimensional frequency domain. The imaging results of simulation and live data demonstrates the theoretical analysis and the method proposed in this paper.

Keywords

Doppler radar; airborne radar; geometry; radar imaging; radar tracking; synthetic aperture radar; target tracking; airborne high squint mode SAR imaging; imaging geometry; modified range-Doppler algorithm; range compression; range curvature correction; target focusing; Azimuth; Focusing; Frequency; Geometry; High-resolution imaging; Image analysis; Radar polarimetry; Signal resolution; Space vector pulse width modulation; Synthetic aperture radar; Radar(SAR); Synthetic Aperture; high squint mode; modified range-doppler(RD) algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Synthetic Aperture Radar, 2007. APSAR 2007. 1st Asian and Pacific Conference on

Conference_Location

Huangshan

Print_ISBN

978-1-4244-1188-7

Electronic_ISBN

978-1-4244-1188-7

Type

conf

DOI

10.1109/APSAR.2007.4418646

Filename

4418646