This is caused by the complexity of underwater target radiatednoise and the variety condition of the sea.
这是由于水下目标辐射信号和海洋环境的复杂性、多变性造成的。
2
The approach of how to extract underwater acoustic signal with auditory model is studied and the auditory features of ship-radiatednoise is extracted.
研究了基于听觉模型的水声信号特征提取方法，提取了舰船辐射噪声的听觉特征。
3
The technique of feature extraction of ship-radiatednoise is of importance to underwater equipment, and it is a hotspot and difficult area in the national and international research.