Performance analysis of superdirective beamforming of circular hydrophone array
Zhengyao He, Qiang Shi, Yuanliang Ma · 2017
The performance of superdirective beamforming of a practical circular hydrophone array is investigated. The received signal of a 16-element circular hydrophone array with radius of 0.25m are measured in the anechoic water tank. The array manifold at the frequency of 1.11kHz is obtained. The superdirective beamforming of the circular array is designed and realized. The correctness and effectiveness of the superdirective beamforming method is verified by the experimental results. The practical directivity of the circular array obtained by the superdirective beamforming method is obviously superior to that obtained by the conventional beamforming method.