舰船仿真噪声成像方法研究  

Imaging of Ship Noise Based on Simulation Noise Signal

作　　者：王笑[1] 孙超[2] 

机构地区：[1]中国船舶重工集团公司第七一〇研究所,宜昌443003 [2]西北工业大学,西安710072

出　　处：《舰船电子工程》2015年第2期90-93,共4页Ship Electronic Engineering

摘　　要：根据舰船(舰艏、舰舯、舰艉)三个部位的辐射噪声具有明显不同的能量特性,将舰船简化为双亮点和三亮点模型,以MUSIC法和相干信号子空间法为基础,对舰船仿真辐射噪声用8元均匀圆阵进行两亮点和三亮点成像研究,从结果可以看出,这种方法可以很好地分辨不同的亮点。Depend on the radiation noise of three parts of the ship（the bow,the amidships,the ship stern）,which has obviously different energy features,the ship is simplified to＂two highlights＂and＂three highlights＂model.On the basis of MUSIC method and the Coherent Signal-Subspace method,this paper gives the method of eight-unit circular array,that study on the two points imaging and three points imaging research of the ship simulation radiation noise.This method can distinguish different window positions perfectly,which can be seen from the result.

关 键 词：被动声成像 MUSIC法 相干信号子空间法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]