In this paper, a method of effectively calculating the acoustic attenuation coefficient for a fluid seabed with high sound speed is presented. The method is formulated based on the fact that the fractional part of the...In this paper, a method of effectively calculating the acoustic attenuation coefficient for a fluid seabed with high sound speed is presented. The method is formulated based on the fact that the fractional part of the attenuation coefficient contributed by the water column varies slowly with different normal modes. One of the advanages of the method is that it can remove the effects of the water column absorption. Furthermore, the method can be used to invrse the seabed acoustic attenuation coefficient in a wider frequency range of ≤ 2 kHz than the conventional methods (f ≤200 Hz).展开更多
文摘In this paper, a method of effectively calculating the acoustic attenuation coefficient for a fluid seabed with high sound speed is presented. The method is formulated based on the fact that the fractional part of the attenuation coefficient contributed by the water column varies slowly with different normal modes. One of the advanages of the method is that it can remove the effects of the water column absorption. Furthermore, the method can be used to invrse the seabed acoustic attenuation coefficient in a wider frequency range of ≤ 2 kHz than the conventional methods (f ≤200 Hz).
