一种基于自适应滤波器的潜艇辐射噪声仿真方法

A Simulation Method for Submarine Radiation Noise Based on Adaptive Filter

摘要:

文章提出了一种基于自适应滤波器的潜艇辐射噪声仿真方法。在对潜艇辐射噪声连续谱、线谱和调制谱的数学模型进行研究的基础上,利用 Ecs型功率谱模型,基于自适应滤波器,通过傅里叶反变换对潜艇辐射噪声连续谱进行了仿真,分别叠加了线谱信号和调制谱信号之后,得到潜艇辐射噪声的仿真结果。通过对仿真结果的分析和利用仿真结果与实装进行对接测试,表明仿真的辐射噪声逼真度较高。

Abstract:

A simulation method for submarine radiation noise based on adaptive filter was proposed. Based on the research on the mathematical models of continuous spectrum, line spectrum and modulation spectrum of sub. marine radiation noise, the continuous spectrum of submarine radiation noise was simulated via inverse fourier transform based on adaptive filter using Ecs spectrum model. The simulation results was obtained after superpose. ing the line sepctrum signal and modulation signal. The analysis and equipment test of the simulation results showed that its naturalness was so good that the method was practical.