Performance analysis of underwater acoustic communication based on beam diversity in deep water

IF 0.2 Q4 ACOUSTICS
Donghyeon Kim, Heejin Park, Jeongyup Kim, Joung-Soo Park, Jooyoung Hahn
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引用次数: 1

Abstract

Underwater communication performance is degraded by the influence of Inter-Symbol Interference (ISI) due to multipath. Passive time reversal processing is the most effective technique for mitigating multipath, and the diversity combining method can be used to improve its performance. This paper analyzed communication performance using the beam diversity combining method, which combines signals obtained through the beam steering to various angles. Directions of arrival were estimated through the beam-time migration, which, in turn, was estimated from probe signals received by a vertical line array. The performance was analyzed based on the number and type of combinations among the estimated angles. In this paper, the data obtained from the Biomimetic Long range Acoustic Communications 2018 (BLAC18) experiment, which was conducted in the East sea, ~50 km east of Pohang, in October 2018, were used for the analysis. The output Signal to Noise Ratio (SNR) was used as communication indicators.
基于波束分集的深水水声通信性能分析
水下通信性能由于多径引起的符号间干扰(ISI)的影响而降低。无源时间反转处理是抑制多径的最有效技术,分集组合方法可以提高其性能。本文使用波束分集组合方法分析了通信性能,该方法将通过波束转向获得的信号组合到不同角度。到达方向是通过波束时间偏移来估计的,而波束时间偏移又是根据垂直线阵列接收到的探测信号来估计的。根据估计角度之间组合的数量和类型来分析性能。本文使用2018年10月在浦项以东约50公里的东海进行的2018年仿生远程声学通信(BLAC18)实验获得的数据进行分析。输出信噪比(SNR)被用作通信指标。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
0.60
自引率
50.00%
发文量
1
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