首页> 外文期刊>Parallel Algorithms and Applications >Simulation and modeling of hydro acoustic communication channels with wide band attenuation and ambient noise
【24h】

Simulation and modeling of hydro acoustic communication channels with wide band attenuation and ambient noise

机译:具有宽带衰减和环境噪声的水声通信信道的仿真和建模

获取原文
获取原文并翻译 | 示例

摘要

Acoustic waves are the preferred medium for long-range underwater communications. Increasing number of innovative methods for underwater communication using acoustic waves appears. Performance of underwater communications for the new methods needs to be evaluated through simulation. Simulation of underwater acoustic communications is challenging due to many impediments, including attenuation, multipath propagation, noise and Doppler spread. In this paper, a baseline time domain simulation model is extended to several frequency-domain models. The proposed frequency models, including two incoherent models and a coherent model, take multipath attenuation and ambient noise into account. An incoherent linear fitting model and a coherent model are simulated and compared with a theoretical reference and the baseline time model. The proposed incoherent models are also compared with one another. Simulation shows that the incoherent linear fitting model produces results similar to the multi-frequency-merge-path model, but requires less computation time. In addition, the proposed coherent model is compared with field experimental data. The coherent model with color noise, in the frequency domain, can match closely the bit error rates of the field experimental data.
机译:声波是进行远程水下通信的首选介质。出现越来越多的使用声波进行水下通信的创新方法。新方法的水下通信性能需要通过仿真进行评估。由于许多障碍,包括衰减,多径传播,噪声和多普勒扩展,水下声通信的仿真具有挑战性。在本文中,基线时域仿真模型被扩展到几个频域模型。所提出的频率模型(包括两个非相干模型和一个相干模型)考虑了多径衰减和环境噪声。模拟了非相干线性拟合模型和相干模型,并将其与理论参考和基线时间模型进行了比较。提出的不相干模型也相互比较。仿真表明,非相干线性拟合模型产生的结果类似于多频合并路径模型,但是所需的计算时间更少。另外,将所提出的相干模型与现场实验数据进行比较。在频域中具有色噪声的相干模型可以紧密匹配现场实验数据的误码率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号