非高斯噪声背景下船舶轴频电场信号的提取  

Extraction of Shaft-rate Modulated Electric Fields of a Ship Under Non-Gauss Noise

作　　者：沈滨[1,2] 李俊[1] 陈信钦[1] 

机构地区：[1]海军工程大学兵器工程系,武汉430033 [2]军械士官学校枪炮系,武汉430033

出　　处：《船海工程》2009年第5期190-193,共4页Ship & Ocean Engineering

摘　　要：为了保证测量效果,采用窄带滤波对船舶轴频电场信号进行预处理,在此基础上,建立基于BP神经网络自适应噪声抵消系统对船舶轴频电场信号进行提取。The narrow-band filter was applied to pre-treat the electric field signal of shaft frequency in order to ensure the measurement effect. The adaptive noise reduction system based on the neural networks and time-frequency analysis was developed to extract the electric field signal of shaft frequency of a ship.

关 键 词：神经网络 窄带滤波 船 电场 

分 类 号：TN911.7[电子电信—通信与信息系统]