WANG Ding1, PAN Miao2, WU Ying1. Maximum likelihood self-calibration for direction-dependent gain-phase errors with carry-on instrumental sensors:case of deterministic signal model[J]. 2011, 32(2): 34-41.
WANG Ding1, PAN Miao2, WU Ying1. Maximum likelihood self-calibration for direction-dependent gain-phase errors with carry-on instrumental sensors:case of deterministic signal model[J]. 2011, 32(2): 34-41.DOI:
Aim at the self-calibration of direction-dependent gain-phase errors in case of deterministic signal model
the maximum likelihood method(MLM) for calibrating the direction-dependent gain-phase errors with carry-on instrumental sensors was presented.In order to maximize the high-dimensional nonlinear cost function appearing in the MLM
an improved alternative projection iteration algorithm
which could optimize the azimuths and direction-dependent gain-phase errors was proposed.The closed-form expressions of the Cramér-Rao bound(CRB) for azimuths and gain-phase errors were derived.Simulation experiments show the effectiveness and advantage of the novel method.