Research Article

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

Figure 4

The MFCC features of particle velocity simulation signals of two kinds of vehicles. (a) The MFCC features of the first kind of vehicle. (b) The MFCC features of the second kind of vehicle. (c) The ΔMFCC features of the first kind of vehicle. (d) The ΔMFCC features of the second kind of vehicle. (e) The ΔΔMFCC features of the first kind of vehicle. (f) The ΔΔMFCC features of the second kind of vehicle.
(a)
(b)
(c)
(d)
(e)
(f)