Evaluation of Shallow Underwater Acoustical Communication Model for Attenuation and Propagation Loss for Aqueous Solution of Sodium Chloride

Panchal, Sweta S.; Pabari, Jayesh

doi:10.1109/icraecc43874.2019.8995039

Cited by 2 publications

(2 citation statements)

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“…Among them, the most popular medium for long distance communication is the acoustic wave because of its unique features in comparison to other applicants [11]. Radio waves are not preferable at low frequencies, as these waves are not able to travel long distances [12]. As a result of much higher attenuation in the water, and is rarely used for underwater communication [13].…”

Section: Introductionmentioning

confidence: 99%

“…Optical waves are not so attenuated, but are affected by absorption, scattering [14] and also high ambient light levels limiting the transmission range [15]. So, acoustic waves become the best option for short range and long range underwater communication [12]. Underwater noise is caused by three main factors: ambient or ocean background noise, vehicle noise and intermittent noise, including biological noise such as shrimps, ice cracking and rain [16].…”

Section: Introductionmentioning

confidence: 99%

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Statistical properties of underwater acoustic noise in Lake Hamrin, Diyala, Iraq

Murad

Al‐Aboosi

2022

IJEECS

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<p>The greatest challenge in underwater acoustic communication systems is the minimization of underwater impact noise. This article offers an empirical example for determining the statistical properties of underwater acoustic noise in the in Lake Hamrin. The data are measured from various depths reached in Lake Hamrin, Diyala, Iraq. In most communication systems, noise is assumed to be additive as well as Gaussian. Underwater acoustic noise (UWAN) isn't only thermal noise, it also includes other components to the UWAN: turbulence, wind and shipping noises. Thus, it should be assumed that the acoustic noise is colored noise instead of white noise. Intermittent noise in the oceans and seas frequently includes significant Non-Gaussian elements. The samples noise data are analyzed in actual time for various depths of 1 meter, 3 meter and 5 meter in order to limit the statistical properties of underwater acoustic noise in Lake Hamrin, Diyala, Iraq such as the autocorrelation function (ACF), the probability density function (PDF) and also power spectral density (PSD). The experimental results showed that the noise of the Tigris river is a color noise and does not follow the Gaussian distribution.</p>

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Section: Introductionmentioning

confidence: 99%