A Kronecker-based subspace decoupling framework separates azimuth and elevation AoA estimation so that 1D MUSIC, root-MUSIC or ESPRIT can be applied independently, yielding higher accuracy than 2D MUSIC or 2D ESPRIT with fewer snapshots.
Estimating the angles of ar rival of multiple plane waves
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Decoupled Azimuth Elevation AoA Estimation Exploiting Kronecker Separable Steering Matrices
A Kronecker-based subspace decoupling framework separates azimuth and elevation AoA estimation so that 1D MUSIC, root-MUSIC or ESPRIT can be applied independently, yielding higher accuracy than 2D MUSIC or 2D ESPRIT with fewer snapshots.