摘要
利用提升小波变换对煤仓雷达物位计信号进行了降噪研究,分析了各种小波将于阈值选取方法,提出了一种新的降噪阈值选取方法,并对提出的方法进行了模拟仿真,结果表明新方法可以有效提高信号的信噪比,降低信号的均方根误差。
The signal de - noising of coal bunker radar level meter was researched using lifting wavelet transform, various of wavelet to threshold selection methods were analyzed, and a new de - noising threshold value selection method was proposed, and simulated. The results show that, the new method can effectively improve the SNR of signal, and reduce the root mean square error of signal.
出处
《煤炭工程》
北大核心
2015年第8期113-115,118,共4页
Coal Engineering
关键词
储煤仓仓位
提升小波变换
阈值降噪
MATLAB
coal level of coal bunker
lifting wavelet transform
threshold value de -noising
MATLAB
