narrow-band frequency response
narrow-band frequency response 窄带频率响应 narrow band frequency modulation 窄带档 ; 窄带频率调制 ; 窄频带调频 narrow band frequency accentuation 窄带档 ..
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而由此构成的水声信道是一个空间与频率响应随机快速变化的传输信道，存在窄带、高噪及强多途干扰。
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.
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