Ground moving target displacement compensation for DPCA based SAR-GMTI system

Author

Kim, Jung ; Park, Jung T. ; Song, Woo Y. ; Rho, Soo H. ; Kwag, Young K.

Author_Institution

Dept. of Avionics, Korea Aerosp. Univ., Seoul, South Korea

fYear

2009

fDate

26-30 Oct. 2009

Firstpage

177

Lastpage

180

Abstract

The velocity and acceleration of the ground moving target can cause the target position to be displaced and defocused in the SAR image. In this paper, the displacement compensation scheme is presented to correct the displaced position and defocused moving target image in the DPCA based SAR-GMTI system. The influence of the ground moving target due to the velocity and acceleration is analyzed in range and azimuth directions, and its compensation method is presented with the simulation results. The performance of the proposed method is compared with respect to the estimated velocity and defocused quantity in both range and azimuth directions.

Keywords

radar imaging; synthetic aperture radar; DPCA; SAR-GMTI system; ground moving target displacement compensation; moving target image; Acceleration; Airborne radar; Aperture antennas; Argon; Azimuth; Clutter; Geometry; Land vehicles; Road vehicles; Solid modeling; DPCA; Dual channel SAR; SAR-GMTI;

fLanguage

English

Publisher

ieee

Conference_Titel

Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on

Conference_Location

Xian, Shanxi

Print_ISBN

978-1-4244-2731-4

Electronic_ISBN

978-1-4244-2732-1

Type

conf

DOI

10.1109/APSAR.2009.5374244

Filename

5374244