Modified MVDR algorithm for DOA estimation using acoustic vector hydrophone

摘要

Algorithm based on MVDR using single acoustic vector-sensor affords a new way for DOA estimation, and the influence of non-consistency character of breadth on capability of DOA estimation is deeply researched, and the corresponding expression of special spectrum estimation is educed as well. The result of analysis in theory and simulation shows that the apex of special spectrum is broaden in width and the warp. In allusion to the condition of non-consistency character between the press and velocity channels, a modified algorithm based on the power of single acoustic vector-sensor channels is advanced. The result of theory and simulation shows that the resolution using the modified MVDR algorithm is better than the conventional MVDR algorithm, the result of processing data on lake experiment testifies to the validity of modified MVDR algorithm.