建立了目标噪声信号传播和衰减的数学模型。
Build target acoustic signal's transmission and attenuation math model.
目标噪声特征提取是被动声纳目标识别系统的关键技术。
Feature extraction of targets radiated-noise is the key technique of passive sonar target recognition system.
目标噪声特征提取和目标分类器设计是被动声呐目标识别系统的关键技术。
Feature extraction of targets radiated noise and design of targets classifier are key technique of passive sonar target recognition system.
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