Journal of Electrical and Computer Engineering / 2015 / Article / Fig 1

Research Article

Time-Frequency Analysis of Clinical Percussion Signals Using Matrix Pencil Method

Figure 1

Two examples of audible percussion signals collected from healthy volunteers: (a) Signal from the left subclavicular area (“resonant” character); (b) signal from the left abdominal area (“tympanic” character). The normalized spectra of both signals are shown in (c).
(a) Resonant signal
(b) Tympanic signal

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