【作者】 曾娟； 陈耀明； 张小平；

【Author】 Zeng Juan, Chen Yao Ming, Zhang xiao ping ( Chinese Academy of Science, Institute of Acoustic, Beijing 100080 )

【机构】 中科院声学所； 海装办公室；

【摘要】 本文提出一种利用环境噪声作为照明声源的目标探测方法。海水中的目标通过散射改变噪声场,通过比较有无目标存在时噪声场的差异可以判别目标的存在。文章在理论上给出圆形压释目标被环境噪声照射时的噪声场的解析表达式,并给出适合数值计算的形式。更多还原

【Abstract】 In this paper, a method for detecting objects is discussed, in which ambient noise is the sole source of acoustic illumination. The object in ocean will change noise field through scattering. Through comparing difference of noise field in this two case, the object can be detected. The analysis expression of noise field when the pressure-release target sphere is illuminated by ambient noise is given in this paper, and the expression, which is fit for numerical evaluation, is given also.更多还原