Fig. 1　simulated investigation of the pulse propagation

The left sound speed profile comes from the far Yellow Sea in Sep. 1996. The source and receivers are all placed above the thermocline. The propagation signals are calculated by simulation when the depth of the receiver ranges from 4 to 10m, and when the distance between the source and receiver range from 1950m to 2050m.

Fig. 2　The signals when the receiver's depth ranges from 4 to 10m

Fig. 2 lists the signals when the depth of receiver ranges from 4 to 10m.

Fig .3　The receive signals when the distance ranges from 1950 to 2050m

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