Estimation of tilt errors in multisensor systems

The authors consider the tilt error problem in a multisensor radar system using an arbitrary number of radars. Assuming that the sensors measurements are bias-free, or the bias has been removed, a measurement model of the tilt error is obtained by transforming each secondary sensor data to the primary sensor frame. Then an adaptive Kalman-filter-based technique is used to estimate the reference frame misalignment of each secondary sensor.<
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