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Airship radar imaging for stationary and moving targets based on thinned array and code division signal

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3 Author(s)
Hou Ying-ni ; National Key Laboratory of Microwave Imaging Technology, Institute of Electronics, CAS, Beijing 100190, China ; Li Dao-jing ; Hong Wen

In order to reduce the complexity of airship real aperture radar, the stationary scene and moving targets imaging method is proposed based on thinned array and code division signal. It can obtain the phase center that equivalent to the full array, thus avoiding the thinned array high sidelobe and high integrated sidelobe ratio. For the stationary targets, it images directly. For the moving targets, it first adopts traditional MTI to achieve clutter suppression, performs pulse compression and pulse accumulation, and achieves moving targets detection and velocity estimation based on the noncoherent integration of all phase centers data. Then choose the Doppler channel data that the moving target exists in to accomplish moving target imaging. The simulation results indicate the validity of the method proposed in the paper.

Published in:

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

Date of Conference:

26-30 Oct. 2009