A vehicle based SFCW SAR for differential interferometry

Author

Lu, Biying ; Zhang, Xiang ; Song, Qian ; Zhou, Zhimin ; Wang, Jian

Author_Institution

School of Electronic Science and Engineering, NUDT, Changsha 410073, P.R. China

fYear

2011

fDate

26-30 Sept. 2011

Firstpage

1

Lastpage

4

Abstract

Ground based synthetic aperture radar (SAR) interferometry has already demonstrated its effectiveness in detecting manmade structures deformation and slow moving objects. A vehicle based stepped frequency continuous wave (SFCW) radar for differential interferometry has been developed in National University of Defense Technology. In this paper, the system characteristic and performance together with the results of displacement measure experiments were described. Thanking to the real-time calibration technology, the high speed SFCW synthesizer and the novel antenna array, the system can provide images at a minimum interval of 50ms with about 0.5mm displacement sensitivity, 0.3m range resolution, and 28.57 mrad azimuth angular resolution.

Keywords

Displacement measurement; Interferometry; Radar antennas; Radar imaging; Synthetic aperture radar; Time frequency analysis; differential interferometry; stepped frequency continuous wave (SFCW); synthetic aperture radar (SAR);

fLanguage

English

Publisher

ieee

Conference_Titel

Synthetic Aperture Radar (APSAR), 2011 3rd International Asia-Pacific Conference on

Conference_Location

Seoul, Korea (South)

Print_ISBN

978-1-4577-1351-4

Type

conf

Filename

6087176