Research on the Improved Least Variance Sound Vector Array DOA Estimation Algorithm

Abstract

This paper proposes a MVDR algorithm based on quaternion model, expresses output of single 2D vector hydrophone as quaternion, establishes the DOA estimation equation of the MVDR algorithm based on quaternion domain, simulates and studies the visual tracking technology based on the particle filtering image frame and improves the four-element number domain MVDR algorithm by multiple signal classification. The four-element number domain MVDR algorithm and improved algorithm reduces the memory demand and computing complexity and improves the DOA estimation precision and resolution capability of the coherent sound source. The analysis and simulation results demonstrate validity of the algorithm, so this algorithm is valuable in engineering application.