量化水下声学通信信道时变特性的指标。

IF 1.2 Q3 ACOUSTICS
Xianpeng Li, Yupeng Tai, Haibin Wang, Jun Wang, Shuo Jia, Yonglin Zhang, Weiming Gan
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引用次数: 0

摘要

由于海洋中的时变多径传播,水下声学通信信号受到时间色散的影响。这会导致符号间干扰,进而降低通信系统的性能。通常情况下,采用信道相关函数来描述这些特性。本文从相关函数出发,提出了一种称为信道平均相关系数(CACC)的指标来量化时变特性。理论上,它与通信性能呈负相关。通过模拟和实验数据处理的对比分析,CACC 比传统指标--信道相干时间--更加有效。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A metric to quantify the time-varying characteristics of underwater acoustic communication channels.

Underwater acoustic communication signals suffer from time dispersion due to time-varying multipath propagation in the ocean. This leads to intersymbol interference, which in turn degrades the performance of the communication system. Typically, the channel correlation functions are employed to describe these characteristics. In this paper, a metric called the channel average correlation coefficient (CACC) is proposed from the correlation function to quantify the time-varying characteristics. It has a theoretical negative relationship with communication performance. Comparative analysis involving simulations and experimental data processing highlights the superior effectiveness of CACC over the traditional metric, the channel coherence time.

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