Underwater Target Echo Signal Separation Using Independent Component Analysis and Principal Component Analysis

摘要

Experimental results, measured in the open ocean using a real target for true target echo signal separation from a mixture of reverberations and noises are presented. The proposed modified independent component analysis (ICA) in conjunction with principal component analysis (PCA), which can preserve the original source signal amplitude, separated the true target echoes from the reflected active sonar signals. In addition, the signal-to-noise ratio (SNR) of the proposed method output was about 3dB better than that of the conventional beamforming technique.