源识别方法在实艇水下噪声数据分析中的应用

Application of Source Identifying for RealMarine Underwater Noise

本文对多点同步测量方法记录的舰艇噪声数据 ,采取在时域上作滤波、时延补偿和互相关得到输入输出协方差矩阵 ,然后从输入输出协方差矩阵计算在网络意义和偏相干意义下输入对输出的贡献以及其它有用的量。

In this paper, for real marine underwater noise data by using synchronous acquisition of points, inputs-output covariance matrix is obtained by filtering, compensating delay and cross correlation. Then the contribution of inputs to output in network sense and partial coherence as well as other useful quantities are calculated from the inputs-output covariance matrix.