Redundancy-Removed MUSIC-like Algorithm Based on Single Vector Hydrophone

Abstract

To reduce the operation time of the MUSIC-like algorithm on a single vector hydrophone, a redundancy-removed MUSIC-like algorithm was proposed. For the extended steering vector, this algorithm removes the repetitive elements directly. For the fourth-order cumulant matrix, the algorithm removes the redundancy using the conjugate symmetry. Simulation experiments show that the proposed algorithm lose a little performance compared with the regular MUSIC-like algorithm. However, the computational cost of the proposed algorithm is reduced greatly.