【作者】 滕月慧； 刘平香；

【Author】 TENG Yuehui,LIU Pingxiang (1 Key Laboratory of Science and Technology on Underwater Acoustic Antagonizing,Shanghai,201108 2 Shanghai Marine Electronic Equipment Research Institute,Shan ghai,201108,China)

【机构】 水声对抗技术重点实验室； 上海船舶电子设备研究所；

【摘要】 浅海环境的混响是阻碍主动声纳探测性能提高的主要因素,尤其是存在气泡层干扰时。本文针对强混响条件下主动声纳目标探测困难的问题,研究了基于主分量反演算法抑制混响的方法。在理论分析和仿真研究的基础上,提出了一种具体可操作性的门限确定方法,并通过仿真数据对比研究了常规声纳处理和主分量反演混响抑制的两种方法。结果表明:在强混响背景下,主分量反演算法能够在提高目标探测能力的同时降低虚警概率。更多还原

【Abstract】 Reverberation is always one of vital factors which degrades active sonar detection in shallow water,especially in bubble field.Therefore reverberation suppression has attracted a lot of attention and the main field of interest in this paper is reverberation suppression via principal component inverse.Based on theoretical analysis and simulation,we presented a detailed method to determine the threshold in principal component inverse algorithm.The results of simulation data processing confirm its validation in suppressing reverberation.The method presented can greatly improve the efficiency of target detection in shallow water and reduce false alarm.更多还原