An alternating optimization algorithm is proposed to jointly estimate direction-of-arrival and antenna position errors in movable antenna systems by alternating between MUSIC-based DOA estimation and closed-form APE estimation using Lagrange multipliers.
Movable antennas for wireless commu- nication: Opportunities and challenges,
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Self-Calibration DOA Estimation for Movable Antenna Systems with Antenna Position Errors
An alternating optimization algorithm is proposed to jointly estimate direction-of-arrival and antenna position errors in movable antenna systems by alternating between MUSIC-based DOA estimation and closed-form APE estimation using Lagrange multipliers.