Antenna Coupling Effects for Space-Time Radar Waveforms: Analysis and Calibration

作者：Babur Galina^*; Aubry Pascal J; Le Chevalier Francois

来源：IEEE Transactions on Antennas and Propagation, 2014, 62(5): 2572-2586.

DOI：10.1109/TAP.2014.2309111

• Antenna coupling effects
• coherent multiple-input multiple-output (MIMO)
• signal processing
• space-time waveforms

In this paper, we investigate the impact of mutual coupling between the antenna array elements on the performance of a multiple-input multiple-output (MIMO) radar with colored waveform transmission (collocated coherent MIMO system). Simulation results confirm the decrease in system performance when antenna mutual coupling is taken into account. A dedicated scan-dependent calibration technique is proposed for elimination of the coupling effect. The experiments with a real X-band antenna array validate the coupling analysis and the calibration procedure presented in this paper.

• 出版日期2014-5