DOI: 10.3724/SP.J.1146.2013.00245

Journal of Electronics & Information Technology (电子与信息学报) 2013/35:12 PP.2802-2808

A Beampattern Design Method for MIMO Radar Based on a Priori Information

Sidelobe clutter suppression is an important issue in target detection. In this paper, a beampattern design method based on a priori information is proposed to suppress clutter in sidelobe. Based on the correlation matrix of the echo in the interesting region with transmitted signal being orthogonal waveform, the cost function for correlation matrix of transmitted waveform is established by employing the maximum Signal-to-Clutter-plus- Noise Ratio (SCNR) criterion, and it can be solved by Semi-Definate Programming (SDP). Then, the transmitted waveform is optimized by using conjugate gradient. The numerical results show that the optimized waveform can increase the SCNR in the echos efficiently, in the non-homogeneous environment with strong clutter.

Key words:MIMO radar,Waveform design,Transmit beampattern,Clutter suppression,Signal-to-Clutter-plus-Noise Ratio (SCNR)

ReleaseDate:2014-07-21 17:04:41