摘要
针对水下目标信号易受噪声影响、信噪分离难的问题,提出一种基于LCD和ICA分析相结合的水声信号降噪方法,给出了该方法在水声降噪领域中应用原理和方法步骤;并通过仿真信号,验证了该方法在水声信噪分离中的有效性。结果表明,采用文中所提的方法能够有效降低噪声干扰,提高目标检测的可靠性。
According to the problems of underwater target signal was susceptible to noise and the signal-noise separation was difficult and so on, an underwater acoustic signal noisereduction method based on LCD and ICA was proposed, of which principle, and method in the field of underwater acoustic denoising were presented. The effectiveness of the proposed method was verified by the simulaiton signal. The results showed that the proposed method could effectively reduce the noise interference and improve the reliability of target detection.
出处
《海军航空工程学院学报》
2016年第5期518-522,566,共6页
Journal of Naval Aeronautical and Astronautical University
关键词
水声信号
降噪
目标检测
局部特征尺度分解
独立成分分析
underwater acoustic signal
denoising
target noisereduction
local characteristic-scale decomposition
independent component analysis