Yang Kunde, Xu Liya, Yang Qiulong, Duan Rui
School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
J Acoust Soc Am. 2018 Jan;143(1):EL8. doi: 10.1121/1.5020267.
A striation-based method with a vertical line array is proposed for source depth estimation. Broadband striation structures of direct and surface-reflected arrivals after propagating to receivers near the ocean bottom are applied. A tracking algorithm for the striation structures is proposed based on the extended Kalman filter. A cost function for source depth estimation is presented by matching the traces of the measured striations with a library of model-based traces under different source depths. The method is demonstrated on array data collected during an acoustic research experiment in the South China Sea in 2016.
提出了一种基于条纹的垂直线阵列方法用于声源深度估计。该方法利用了传播到近海底接收器后的直达波和表面反射波的宽带条纹结构。基于扩展卡尔曼滤波器提出了一种条纹结构跟踪算法。通过将实测条纹的迹线与不同声源深度下基于模型的迹线库进行匹配，给出了声源深度估计的代价函数。该方法在2016年南海声学研究实验期间采集的阵列数据上得到了验证。
