基于有限数据的水下球类目标多基地低频散射声场预报方法
陈昌雄, 彭子龙, 宋昊, 薛亚强, 周富霖

Prediction Method of the Low-Frequency Multistatic Scattering Sound Field for Underwater Spherical Targets Based on Limited Data
CHEN Changxiong, PENG Zilong, SONG Hao, XUE Yaqiang, ZHOU Fulin
表1 带铺板球壳测试与有限元计算目标强度
Tab.1 Target strengths of spherical shells with.pngfener by test and FEM dB
分置角 入射波频率300 Hz 入射波频率500 Hz 入射波频率700 Hz
FEM 试验 FEM 试验 FEM 试验
-30.81 -31.31 -26.76 -26.12 -27.58 -26.93
45° -30.67 -31.75 -24.79 -25.46 -24.01 -23.42
90° -31.03 -32.62 -23.08 -22.42 -17.82 -18.95
135° -32.68 -33.98 -25.26 -23.13 -21.3 -20.12
180° -33.93 -35.96 -28.15 -26.42 -26.52 -24.41