Discrete-time approximation and modeling of a broadband underwater propagation channel based on eigenray analysis

IF 0.2 Q4 ACOUSTICS
Donghoon Shin, Hyeon‑Deok Cho, Taek-ik Kwon, J. Ahn
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引用次数: 0

Abstract

In this paper, broadband underwater propagation channel modeling based on eigenray analysis is discussed. Underwater channels are often formulated in frequency domain time-harmonic signals, which are impractical for simulating broadband signals in time domain. In this regard, time domain modeling of the underwater propagation channel is required for the simulation of broadband signals, for which the eigenray analysis based on ray tracing, resulting in multipath propagation delays in time-domain, is used in this paper. For discrete time system application, the phase, frequency-dependent loss and non-integer sample delays for each eigenray, are approximated by the finite impulse response of the broadband propagation channel.
基于本征射线分析的宽带水下传播信道离散时间逼近与建模
本文讨论了基于本征射线分析的宽带水下传播信道建模方法。水下信道通常用频域时谐信号来表示,这对于时域模拟宽带信号是不现实的。为此,宽带信号的仿真需要对水下传播信道进行时域建模,本文采用基于光线追踪的特征射线分析,在时域上产生多径传播延迟。对于离散时间系统的应用,每个特征射线的相位、频率相关损耗和非整数样本延迟都近似于宽带传播信道的有限脉冲响应。
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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