短垂直阵简正波匹配的声源定位

Source localization by the MMP of a short vertical array

声源被动定位的匹配简正波处理是实现远距离水下目标检测的一种重要手段。本文提出的简正波分解快速迭代方法是一种有效的算法，不仅收敛速度快，而且迭代得到的简正波幅度矢量进行定位匹配处理后，提高了声源定位精度、抑制了旁瓣、该方法的最大优点是降低了垂直阵长度的要求，有潜在的实用价值。通过我们对Ｐｅｋｅｒｉｓ浅海声道和北冰洋深海声道的数值模拟，证明这种简正波分解新方法是合理和有效的。９３年冬季成功地完成短垂直阵声源定位海上实验。

The MMP is an important method of source localization for detecting a distant underwater target. In this paper, a fast iteration method of mode decomposition which is an effective algorithm is presented. It has the fast convergence speed. Ailer the MMP with the iterative mode amplitade vector, the precisions of range and depth estimation are raised, and the sidelobes are suppressed. This method is used to reduce the length requirement of the vertical array, and has potantial application prospects. With the simulated calculation of the Pekeris model and Arctic Ocean sound channel, we prove that the new method of mode decomposition is reasonable and effective. The experiment of localization for a short vertical array has been successfully complated from a Qingdao site, Yellow Sea in December 1993.