摘要
获得精准的船舶测试信号对于保障船舶航行安全非常重要。本文将小波分析应用于船舶测试信号去噪处理中,在处理的过程中详细的阐述了阈值的选择以及小波去噪的实现步骤。最后利用不同的小波系对获取到的含有高斯白噪声的VLCC振动信号进行去噪处理,并通过信噪比的评价得到处理效果较好的母小波函数。
It is very important to get the accurate ship test signal to ensure the safety of ship navigation. In this paper,wavelet analysis was applied to the denoising of ship test signals. In the process of processing, the selection of threshold and the implementation steps of wavelet denoising were described in detail. Finally, the VLCC vibration signal with Gauss white noise was processed by using different wavelet coefficients. And the results were evaluated by signal to noise ratio.
出处
《舰船科学技术》
北大核心
2017年第1X期115-117,共3页
Ship Science and Technology
关键词
小波分析
船舶测试信号
去噪处理
wavelet analysis
ship test signal
denoising processing
