MIMO-SAR Based UWB Imaging for Concealed Weapon Detection

Conference: EUSAR 2010 - 8th European Conference on Synthetic Aperture Radar
06/07/2010 - 06/10/2010 at Aachen, Germany

Proceedings: EUSAR 2010

Pages: 4Language: englishTyp: PDF

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Zhuge, Xiaodong; Yarovoy, Alexander (IRCTR, Delft University of Technology, the Netherlands)

In this paper we present study on a high-resolution imaging system based on the combination of UWB transmission, MIMO array and SAR. For the antenna array an optimized UWB antenna is designed for near-field operation, allowing for distortionless impulse radiation with more than 100% fractional bandwidth. A MIMO linear array is further designed based on the principle of effective aperture. By combining with SAR in the orthogonal direction, high-resolution 3-D volumetric imaging is performed with reduced number of antenna elements. The proposed design is verified by MIMO-SAR measurements in anechoic chamber. The imaging results confirm the performance of the designed system and show a strong potential of MIMO-SAR based UWB system for security applications.