Research Article

Experimental Study of a Broadband Parametric Acoustic Array for Sub-Bottom Profiling in Shallow Water

Figure 3

Source levels of the parametric array. The density of water is 1 kg/m3, and the sound absorption coefficients at 300 kHz, 40 kHz, 30 kHz, 20 kHz, and 10 kHz are 23.4 dB/km, 0.416 dB/km, 0.234 dB/km, 0.104 dB/km, and 0.026 dB/km, respectively, at 15°C.