Transmit/receive beamforming for MIMO radar with colocated antennas

  • Authors:

  • Aboulnasr Hassanien;Sergiy A. Vorobyov

  • Affiliations:

  • University of Alberta, Dept. of Electrical and Computer Engineering, Edmonton, T6G 2V4 Canada;University of Alberta, Dept. of Electrical and Computer Engineering, Edmonton, T6G 2V4 Canada

  • Venue:
  • ICASSP '09 Proceedings of the 2009 IEEE International Conference on Acoustics, Speech and Signal Processing
  • Year:
  • 2009

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Abstract

We propose a new technique for multiple-input multiple-output (MIMO) radar with colocated antennas. The essence of the proposed technique is to partition the transmitting array into a number of subarrays that are allowed to overlap. Each subarray is used to coherently transmit a waveform which is orthogonal to the waveforms transmitted by other subarrays. Coherent processing gain can be achieved by designing a weight vector for each subarray to form a beam towards a certain direction in space. Moreover, the subarrays are combined jointly to form a MIMO radar resulting in higher resolution capabilities. Simulation results show the substantial improvements offered by the proposed technique as compared to previous techniques that validate its effectiveness.