Application of adaptive beamforming technology in underwater acoustic

Beamforming technology is the core part of the underwater target location research. It is very important to study adaptive beamforming algorithm. Adaptive beamforming technology can not only effectively extract the desired target signal, but also form a null in the interference direction to suppress interference and noise, thereby reducing the output power of interference and noise, maximizing the signal to interference noise ratio of array output, and then improving the detection performance of sonar. However, in the actual beamforming environment, the performance of adaptive beamforming algorithm will be affected by steering vector error, sampling covariance matrix error and array response error. This paper studies the traditional methods of beamforming, introduces the methods to improve the robustness of adaptive beamforming algorithm, and briefly describes the application of adaptive beamforming algorithm in underwater acoustic array signal processing.