摘要
论文针对水声被动接收信号检测信噪比增益的需求,通过理论及仿真分析了各参数对自适应线谱增强滤波器性能的影响,给出了规律性结论。并提出一种针对增强后信号的对数域检测方法,通过结合自适应线谱增强器及对数域检测方法,可实现对噪声中脉冲信号的增强检测,且无需自适应滤波器收敛,并通过试验验证了该算法的有效性。
This paper is aimed at the requirement of acoustic detection SNR,the influence of ALE's parameters on iteration speed and amplitude-frequency response is analyzed,then conclusion is given.At the same time,a frequency domain detection method for the enhanced signal is proposed.By combining ALE and digital field detection method,which can realize the enhanced detection of pulse signal in noise,and no adaptive filter convergence is required.Then the effectiveness of the algorithm is verified by experiments.
作者
陈允锋
刘征宇
翟笃文
CHEN Yunfeng;LIU Zhengyu;ZHAI Duwen(Shanghai Military Representative Bureau of Naval Equipment Department,Shanghai 201206;Guangzhou Military Representative Bureau of Naval Equipment Department,Wuzhou 543000;Shanghai Marine Electronic Equipment Research Institute,Shanghai 201100)
出处
《舰船电子工程》
2023年第10期194-199,共6页
Ship Electronic Engineering
关键词
被动降噪
自适应信号增强
脉冲信号检测
passive noise reduction
adaptive signal enhancement
pulse signal detection
