Transmit/receive beamforming for MIMO radar with colocated antennas

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.

• Type: Conference
• Year: 2009
• Where: ICASSP
• Authors: Aboulnasr Hassanien, Sergiy A. Vorobyov
• Keywords: Coherent Processing Gain, ICASSP 2009, Multiple-input Multiple-output, Signal Processing, Transmitting Array