【作者】 邸忆； 顾晓辉； 孙丽；

【Author】 DI Yi;GU Xiao-hui;SUN Li;School of Mechanical Engineering,Nanjing University of Science and Technology;

【机构】 南京理工大学机械工程学院；

【摘要】 针对在水声干扰子弹试验现场中检测到的连续爆炸水声干扰信号较微弱,极易受到舰船水声等其他噪声干扰的问题,提出一种基于EMD的连续爆炸水声干扰信号恢复技术的研究方法。采用自适应。EMD对含噪声信号进行分解并降噪,从原始声信号中恢复相应的连续爆炸声信号点。实验结果表明,基于EMD的弱信号恢复方法可以更好的实现信号恢复,有效地为水声干扰子弹试验场提供必要的可靠数据,为该子弹后续研究奠定数据基础。更多还原

【Abstract】 For the problem that the signal detected from acoustic interference shrapnel exploded continuously underwater is weak and easily got interference,a method of signal recovery for continuous explosion acoustic interference based on EMD is proposed.The original signals are decomposed into finite IMFs by EMD which has been improved.And the continuous explosion acoustic signal points are recovered from the original signal.The results present that the signal recovery effect is remarkable and effective based on EMD in continuous explosion acoustic interference.更多还原