The authors verify that the indoor aerial acoustic transmission channel regarding small‐scale application environments, for example, a car cabin, is a quasi‐wide sense stationary uncorrelated scattering (QWSSUS) channel like radio channels. To the best knowledge of the authors, the QWSSUS feature of the indoor aerial acoustic transmission channel has never been evaluated before. Setting out from the QWSSUS concept, the channel modeling by means of correlation functions is proposed. Also, parameter sets that can be used in channel simulations are suggested.

中文翻译：

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室内空中声波传输通道的测深和建模

作者证实，与小规模应用环境（例如车厢）有关的室内空中声波传输通道是类似于无线电通道的准广义静止不相关散射（QWSSUS）通道。据作者所知，室内空中声传输通道的QWSSUS功能以前从未被评估过。从QWSSUS概念出发，提出了利用相关函数进行信道建模的方法。另外，建议可以在通道仿真中使用的参数集。