and ambient acoustic noise

基本解釋

Underwater acoustic channel is a time-space-frequency variant channel, having a character for narrow bandwidth, high ambient noise level and strong interference of multipath.
而由此構(gòu)成的水聲信道是一個空間與頻率響應(yīng)隨機快速變化的傳輸信道，存在窄帶、高噪及強多途干擾。
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The noise sources are assumed to be statistically independent directional acoustic sources situated on the surface, and the effects of ocean environment on ambient noise are studied.
假設(shè)噪聲源是統(tǒng)計獨立分布在海面上的指向性點源，研究噪聲源特性以及傳播條件對海洋環(huán)境噪聲場的影響。