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Joint DOA and Array Manifold Estimation for a MIMO Array Using Two Calibrated Antennas (1310.2960v1)
Published 10 Oct 2013 in cs.IT, math.IT, and math.NA
Abstract: A simple scheme for joint direction of arrival (DOA) and array manifold estimation for a MIMO array system is proposed, where only two transmit antennas are calibrated initially. It first obtains a set of initial DOA results by employing a rotational invariance property between two sets of received data, and then more accurate DOA and array manifold estimation is obtained through a local searching algorithm with several iterations. No strict half wavelength spacing is required for the uncalibrated antennas to avoid the spatial aliasing problem.