Virtual beam steering using mimo radar
AssigneeBdcm A2 LLC
InventorJun Fang
Life of this patent
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Abstract
Examples disclosed herein relate to a Multiple-Input Multiple-Output (MIMO) radar for virtual beam steering. The MIMO radar has a plurality of transmit antennas and a receive antenna array having a plurality of radiating elements. The MIMO radar also includes a digital signal processor (DSP) configured to synthesize a virtual receive array having N×M receive subarrays from the plurality of transmit antennas and the receive antenna array, where N is the number of transmit antennas and M is the number of receiving elements. Other examples disclosed herein relate to a method of virtual beam steering.
Claims1
A method of processing data for an antenna system, comprising:
- synthesizing a virtual receive array representing a plurality of transmit antennas and a plurality of receive antenna elements of the antenna system;
- determining a manifold matrix that represents the virtual receive array based on a function of a geometry of the virtual receive array, a carrier frequency, and a direction of arrival of signal data received from the plurality of transmit antennas;
- generating a transformation matrix from the virtual receive array and the manifold matrix;
- and
- determining a linear transformation matrix using an optimization criterion that is a function of the virtual receive array and the transformation matrix.
Dependencies are inferred from the claim text.