摘要
对水中目标识别而言,其关键技术之一就是对目标水声信号的分析处理。基于短时傅立叶变换思想,论文给出了一种针对水中目标水声信号的时间-频率提取方法,并对此方法进行了仿真分析,结果表明此方法对水声信号的时频特征提取可行有效。
One of the key techniques in the identification of underwater target is the analysis of the target underwater acoustic signal.Based on short-time Fourier transform method,this paper presents a extraction method to extract the feature of time-frequency about underwater acoustic signal by the target in water,simulation and analysis of the method is also taken in this paper.The results show that the method to extract the underwater acoustic signal time-frequency feature is feasible and effective.
作者
庄瑞
赵云冬
ZHUANG Rui;ZHAO Yundong(Kunming Shipborne Equipment Research and Test Center,Kunming 650051)
出处
《舰船电子工程》
2018年第3期135-136,158,共3页
Ship Electronic Engineering
