【作者】 杨松； 罗建； 王慧刚； 魏袁媛； 刘亚萍；

【Author】 YANG Song;LUO Jian;WANG Huigang;WEI Yuanyuan;LIU Yaping;School of Marine Science and Technology, Northwestern Polytechnical University;

【机构】 西北工业大学航海学院；

【摘要】 本文根据相同和不同水声信号相邻频点间相关性的差异,实现水声信号盲源分离次序调整,从两源推广到多源。主要思路和方法是通过计算与自身相邻频点以及与其他路信号相邻频点的幅度相关系数,将其组成向量,然后对向量中的元素进行排序,根据排序的结果判断对应的频点是否需要做次序调整。这种方式可以实现多源水声信号盲源分离频点的次序调整。通过采用论文所给的一种算法对三路实测舰船辐射噪声信号的分离,初步验证了算法的有效性,可望推广应用于多路水声信号的次序调整。更多还原

【Abstract】 In this paper, according to the difference of the correlation between the same and different underwater acoustic signals, the sequence of blind source separation of underwater acoustic signals is adjusted and extended from two sources to multiple sources. The main idea and method is to calculate the amplitude correlation coefficient of adjacent frequency points with itself and adjacent frequency points with other road signals to form the vector, and then sort the elements in the vector, and judge whether the corresponding frequency points need to be adjusted according to the sorting result. This method can adjust the order of BSS frequency points of multi-source underwater acoustic signals. By using an algorithm proposed in this paper to separate three measured ship radiated noise signals, the effectiveness of the algorithm is preliminarily verified, and it is expected to be applied to the sequence adjustment of multi-channel underwater acoustic signals.更多还原