【作者】 郭媛媛； 金方圆； 王运鹰； 李桂娟；

【Author】 GUO Yuan-yuan;JIN Fang-yuan;WANG Yun-ying;LI Gui-juan;Science and Technology on Underwater Test and Control Laboratory;

【机构】 水下测控技术重点实验室；

【摘要】 本文从气泡群后向散射特性出发,开展了模拟气泡后向散射特性水池实验研究,详细分析了探测距离及接收视场角分别对气泡群后向散射特性的影响。结果表明:后向散射回波信号强度随着探测距离的增大呈指数衰减趋势;随着接收视场角的增大呈近似线性增强趋势,回波信号的信噪比亦受其影响较大。实验结果可为文献[1]的数值仿真结果提供佐证。更多还原

【Abstract】 In this paper, we focus on the backward-scattering properties of bubbles; Firstly, the distribution of scattering intensity of single bubble with multiple particle size is studied, the theory of single bubble scattering is Mie Theory. Based on single bubble scattering, Monte-Carlo method is used to simulate multiple scattering characteristics of bubble cluster with different density under the uniform distribution. Then a water tank experiment for laser backward-scattering properties of imitated bubble cluster is carried out. The results show that, the intensity of backward scattered echo signal is exponential with increase of the probe distance; the signal to noise ratio of the echo signal is greatly affected by the size of the receiving field angle.This study may provide a reference for the paper[1].更多还原