OBF分解与BP网络在船舶磁场信号检测中的应用

摘要

针对水中兵器探测船舶磁场信号时信噪比较低的问题,提出了基于OBF分解与BP网络的船舶磁场信号检测算法。首先采用BP网络对测量数据进行预处理,滤除大部分环境磁噪声;再采用OBF分解算法对网络输出信号进行检测,提取归一化能量信号作为检验统计量。试验结果表明,本文算法可以显著提高信噪比,增强对船舶磁场信号的检测能力,性能明显优于直接采用OBF分解的检测算法。%Aimed at the low SNR in detecting magnetic signal of ship,a detection algorithm based on OBF decomposition and BP neural network is proposed.First,BP neural network is used to process measured data in order to filter out a majority of environment magnetic