有源对消隐身是现代隐身技术发展的一个重要方向，本文研究浅海环境中利用声呐探测方向的目标散射函数构建对消声场的可行性。数值计算了Pekeris波导中不同底质、声呐频率时的散射声场和对消声场，进而对隐身效果进行分析。结果表明：当目标的复杂散射函数在主要波导模态的水平掠射角±ΔΨ范围内约是常数时，隐身效果基本有效，尽管在个别距离上有源对消会对隐身效果起反作用，但随着目标到声呐之间距离的增加，有源对消隐身效果变好。
Active cancellation stealth is an important research in the field of stealth nowadays. The availability of cancellation field, which is built by scatter function in the sonar direction in shallow water,is analyzed. The scattering and cancellation field in Pekeris shallow water waveguide is calculated when the seabed and the sonar frequency are different respectively, and the effect of active cancellation stealth is analyzed. The simulation result indicates that the stealth is found to become approximately valid in a shallow water waveguide when the object's complex scatter function is roughly constant over the horizontal grazing angles ±ΔΨ spanned by the dominant waveguide modes.The retroaction on stealth appears in some position, but the effects of active cancellation stealth are better when the distance between sonar and target becomes far.
2018,40(4): 110-113,118 收稿日期：2018-02-09
DOI：10.3404/j.issn.1672-7649.2018.04.022
分类号：O427.2;O427.9
作者简介：王尚可(1985-),女,工程师,主要从事舰船隐身与目标特性测试技术研究
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