Feature Extraction of Underwater Target Signal Using Mel Frequency Cepstrum Coefficients Based on Acoustic Vector Sensor

Figure 8

The MFCC features of particle velocity signals of two kinds of underwater targets. (a) The MFCC features of radiation noise of ship. (b) The MFCC features of radiation noise of speed boat. (c) The ΔMFCC features of radiation noise of ship. (d) The ΔMFCC features of radiation noise of speed boat. (e) The ΔΔMFCC features of radiation noise of ship. (f) The ΔΔMFCC features of radiation noise of speed boat.

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