基于FTF算法的ALE在舰船辐射噪声检测中的应用  

Application of ALE based on FTF Algorithm in Ship-Radiated Noise Detection

作　　者：李少卿[1] 吴学智[1] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《通信技术》2017年第6期1175-1180,共6页Communications Technology

摘　　要：对舰船辐射噪声中线谱成分的检测,是被动声纳对目标定位识别中的关键技术。应用自适应线谱增强器(Adaptive Line Enhancer,ALE),可以有效从宽带背景噪声中提取出舰船辐射噪声的线谱成分。基于最小均方误差(Least-Mean-Square,LMS)的ALE收敛速度慢,提出应用基于快速横向滤波(Fast Transversal Filter,FTF)的ALE对舰船辐射噪声的非线谱成分进行抑制。仿真结果显示,FTF算法自适应线谱增强器收敛速度快,输出精度较高,有利于对舰船辐射噪声线谱成分的提取。The detecting of line-spectra in ship-radiated noise is the key technique for passive sonar to position and distinguish underwater targets. ALE（Adaptive line Enhancer） can effectively separate the ship-radiated noise line-spectra from the broadband background noise. For the slow convergence rate and the great complexity LMS（least-mean-square） algorithm-based ALE, the ALE based on the FTF（fast transversal filter） algorithm is used in the ship-radiated noise processing to filter the non-line-spectra. Simulation results indicate that the FTF algorithm-based ALE on is fast in convergence rate and high in output accuracy, and thus is advantageous to extracting the ship-radiated noise line-spectra.

关 键 词：舰船辐射噪声 自适应线谱增强器 LMS算法 FTF算法 

分 类 号：TN911.7[电子电信—通信与信息系统]