拖曳声纳的本舰噪声仿真  

Vessel Noise Simulation of Towed Sonar

作　　者：张明敏[1] 王平波[1] 谈亮[1] 

机构地区：[1]海军工程大学电子工程学院,南京211800

出　　处：《系统仿真学报》2003年第3期426-428,446,共4页Journal of System Simulation

摘　　要：利用线性预测技术,以AR模型拟合指定功率谱的方法,分别对舰船噪声源中的平稳连续谱部分和时变调制谱部分进行了建模与仿真。采用多个点声源来模拟船体噪声源,按照各个声源的空间位置,并计及海底、海面对声场的一次反射作用,最后得到本舰在拖曳声纳基阵位置上的辐射噪声。Based linear prediction technology, this paper applies the algorithm that fits the assigned power spectrum with AR model to model and simulates the part of vessel noise with stable and continuous power spectrum and the other part with time-variable power spectrum respectively. Lots of point sources are introduced in the simulation of vessel noise source. According to their spatial positions, these point sources and their mirror images created by the first reflection from sea surface and bottom are delayed and added to generate the received vessel noise by towed sonar array.

关 键 词：舰船噪声仿真 水声 拖曳声纳 近场噪声 

分 类 号：TJ630[兵器科学与技术—武器系统与运用工程]