通过参数的选择可以建立不同的典型无线信道模型。
The model can establish some different wireless channel models through the parameter choice.
论文首先介绍了海洋水声信道的特性，给出了两种远程水声信道模型和相应的信道参数。
At first, characteristics of underwater acoustic channel are introduced, and two models of long distance underwater acoustic channel are given with relevant channel parameters.
因此本文着重研究了与文本无关的说话人确认系统，从参数级、模型级、系统级三个方面加强了系统的信道鲁棒性。
Therefore this thesis studies on text-independent speaker verification and channel robustness methods on feature level, model level and system level.
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