摘要
在分析了潜艇和海洋背景噪声产生机理的前提下,利用AR模型估计功率谱的方法,模拟了舰船辐射噪声的数学模型,并用MATLAB进行了仿真,仿真结果显示,数学模型的建立是合理的,而且符合实际舰船辐射噪声的频谱分布,从而为被动声呐接收系统的信号处理算法研究和检测提供了信号源,同时为声呐诱饵技术的研究提供了信号参考,具有实际意义。
With the knowledge of noise producing mechanism of submarines and sea,this paper established the mathematical model of ships＇noise,using the method of AR used to estimate power spectrum,and simulated it with MATLAB.The result indicates the rationality of the model and the simulation accords with the distribution of actual ships＇spectrum.The research supplies the signal source for the research and test of arithmetic in the processing passive sonar receiving system and meanwhile presents a reference for the research of sonar bait technology.
出处
《国外电子测量技术》
2011年第12期15-17,55,共4页
Foreign Electronic Measurement Technology
关键词
AR模型
线谱
连续谱
时变谱
AR model
line spectrum
continuous spectrum
time-variable spectrum
