基于FIR滤波器的船舶辐射噪声仿真  

Simulation of ship radiation noise based on FIR filter

作　　者：赵雨佳 邢传玺[1] 姜佳圆 许奕 ZHAO Yu-jia;XING Chuan-xi;JIANG Jia-yuan;XU Yi(School of Electrical and Information Technology,Yunnan Minzu University,Kunming 650500,China)

机构地区：[1]云南民族大学电气信息工程学院,云南昆明650500

出　　处：《云南民族大学学报（自然科学版）》2023年第4期500-505,共6页Journal of Yunnan Minzu University:Natural Sciences Edition

基　　金：国家自然科学基金(61761048);云南省基础研究专项面上项目(202101AT070132).

摘　　要：船舶水下辐射噪声中含有丰富的特征信息,但是水下声信号分布离散,数据采集工作成本大,耗时长.因此在实测数据缺乏的情况下,不同船舶辐射噪声的仿真对目标识别、定位等工作的研究提供了有利保障.通过研究分析船舶辐射噪声的来源和不同船舶辐射噪声的规律,采用窗函数法对特定频率响应的FIR滤波器进行设计,分别对巡洋舰、渔船、客船三种船型的辐射噪声进行了仿真.仿真结果表明,该方法较为准确且真实地反映了不同船舶的辐射噪声规律,对水下声信号处理研究具有重要意义.The underwater radiated noise of ships contains abundant characteristic information,but the distribution of underwater acoustic is discrete,and the data acquisition is costly and time-consuming.Therefore,the simulation of radiated noise from different ships guarantees and targets recognition and positioning in the absence of measured data.By researching and analyzing the sources of ship radiated noise and the laws of different ship radiated noises,this paper uses the window function method to design FIR filters with specific frequency responses and simulates the radiated noise of cruisers,fishing boats,and passenger ships,respectively.Simulation results show that this method can accurately and truly reflect the law of radiated noise of different ships,which is of great significance in the research of underwater acoustic signal processing.

关 键 词：船舶辐射噪声 功率谱估计 FIR滤波器 

分 类 号：TB567[交通运输工程—水声工程]