Ground moving target indication for MIMO-SAR

Author

Libao, Wang ; Jia, Xu ; Shibao, Peng ; Kan, HuangFu ; Yingning, Peng

Author_Institution

Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

fYear

2009

fDate

26-30 Oct. 2009

Firstpage

173

Lastpage

176

Abstract

The multi-input multi-output synthetic aperture radar (MIMO-SAR) is an innovative concept, which can bring high degrees of freedom for SAR system with limited transmitting/ receiving (T/R) elements. In this paper, ground moving target indication (GMTI) for MIMO-SAR is studied based on reasonable usage of the space-time equivalent samplings. Furthermore, this paper gives a deep insight of the azimuth Â¿spurious peaksÂ¿ effect, caused by the periodically modulated error signal due to the radial velocity of moving target. Also, the compensation method is given to suppress the unwanted Â¿spurious peaksÂ¿. Finally, the numerical experiments are also provided to demonstrate the effectiveness of the MIMO-SAR GMTI.

Keywords

MIMO radar; synthetic aperture radar; GMTI; MIMO-SAR; ground moving target indication; multi-input multi-output synthetic aperture radar; periodically modulated error signal; radial velocity; space-time equivalent samplings; spurious peaks effect; Azimuth; Doppler radar; High-resolution imaging; Image reconstruction; Layout; MIMO; Phased arrays; Radar imaging; Sampling methods; Signal sampling; GMTI; MIMO-SAR; equivalent sampling;

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.2009.5374247

Filename

5374247