When an acoustic pulse propagates in a turbulent ocean with a deterministic sound-speed profile, it is distorted since every frequency component experiences different extents of turbulent scattering and echo numbers. Here, the split-step method is used to simulate an acoustic pulse with a 3kHz carrier propagating through a turbulent ocean with range-independent / - dependent sound-speed profiles. It is found that (1) The ocean is a frequency-selective fading channel; (2) The received pulse profile is dependent on the received depth, sound speed distribution, fluctuation strength and scale length of turbulence in oceans; (3) The rms pulsewidth is broadened by several times of its initial value; (4) The increase in fluctuation strength or decrease in the scale length increases the rms pulsewidth; and (5) The statistical properties are similar for both the range-independent and -dependent cases in the mean square sense.
|Number of pages||5|
|Journal||Oceans Conference Record (IEEE)|
|State||Published - 9 Oct 1995|
|Event||Proceedings of the 1995 MTS/IEEE Oceans Conference. Part 1 (of 3) - San Diego, CA, USA|
Duration: 9 Oct 1995 → 12 Oct 1995