Direction Finding with GainPhase Errors and Mutual Coupling Errors in the Presence of Auxiliary Sensors

Abstract EN

Many classical direction of arrival (DOA) estimation algorithms suffer from sensitivity to array errors.

A simple but efficient method is presented for direction finding in the presence of gain and phase errors as well as mutual coupling errors.

By applying a group of auxiliary sensors, DOAs and gain and phase coefficients can be simultaneously estimated, and mutual coupling coefficients can also be estimated by utilizing a novel decoupling method.

The proposed algorithm does not require iterative operation or any calibration sources or spectral peak searching.

Simulation results demonstrate the effectiveness of the proposed method.