doi:

DOI: 10.3724/SP.J.1146.2007.01509

Journal of Electronics & Information Technology (电子与信息学报) 2008/30:9 PP.2033-2037

High Resolution Range Imaging and Sidelobe Suppression Based on FD-MIMO Radar


Abstract:
A Frequency Divided Multiple Input Multiple Output (FD-MIMO) radar is proposed, which can synthesize the High Range Resolution Profile (HRRP) by transmitting and receiving narrowband waveforms in different frequency bands without over-demanding system bandwidth. And thanks to short pulse duration, the HRRP of FD-MIMO radar has good Doppler tolerance. But the synthesized HRRP suffers from high-level sidelobes near and far from the mainlobe caused by the discontinuity of the synthesized spectrum and the interferences between the subband waveforms respectively. To suppress them, the reciprocal spectrum filter is applied and the out-of-band attenuation of each subband waveform is utilized. Finally, numerical experiments show the effectiveness of the presented methods.

Key words:Frequency Divided Multiple Input Multiple Output (FD-MIMO) radar,Ambiguity function,High range resolution image,Reciprocal spectrum filter

ReleaseDate:2014-07-21 15:38:06



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