摘要
目标识别的核心问题就是目标特征提取。文章用LOFA和DEMON的方法对舰船辐射噪声的谱和频率特性进行分析,给出了方法和结果的简要介绍,并对仿真信号和实船信号分别进行研究,得到了一些具有工程实际意义的计算结果,为舰船的检测识别提供了有效的参考。
The key problem of the target identification is target characteristic abstraction.In this paper, the spectrum and the frequency characteristics of the ship radiated-noise were analyzed by using LOFAR and DEMON method.The introduction of the method and some theoretical analysis are given.Emulational signal and real signal are investigated respectively and some useful results which are practical for engineering are presented. It provided effective criterion for the shin detection and identification.
出处
《船舶力学》
EI
北大核心
2007年第2期300-306,共7页
Journal of Ship Mechanics
关键词
特征提取
LOFAR特征
DEMON特征
舰船辐射噪声
characteristic abstraction
LOFAR characteristic
DEMON characteristic
ship radiated-noise
