Figure 6
From: Self-similarity property of acoustic data acquired in shallow water environment
Experimental acquisition of the original waveform signal in Qilihai Reservoir. Left for a point-like sound source excitation of direct wave and the reflected echo pulses, the synchronization performance is good. In the same time, after the strong signal disappears, it is possible to see that there is a large difference due to the environmental impact of the shallow water acoustic signal waveform. It is difficult to analyze signal characteristics by the classic methods.