基于盲信号处理的舰船辐射噪声检测

根据舰船辐射噪声在水中传递的环境及特点,采用盲信号处理技术重构出相应的原始辐射源信号,该方法能够减少噪声及舰船间的相互干扰,提高了原始辐射源信号的信噪比,从而为水中兵器目标信号的准确检测提供了基础。仿真实验研究了单船舶辐射噪声信号谐波成分的分离及多船舶辐射噪声混合信号的分离,结果表明该算法稳定性好、收敛速度快,是一种有效的舰船辐射噪声检测方法。

Ship Radiated Noises Detection Based on Blind Signal Processing

Based on blind signal processing,this paper shows that the original source signals could be reconstructed from the hybrid complex underwater signals.The signal-to-noise ratio is improved and the interference is reduced by use this algorithm.Two simulation experiments that the decomposition of different harmonic sources in one ship and the separation of radiated noises in multi-ship have been carried out in this paper.The simulation experiments shown that the algorithm is stable and effective.