燕山大学学报Issue(5)：430-433,441,5.DOI:10.3969/j.issn.1007-791X.2013.05.010
轧辊偏心自动分层确定阈值滤波法
Roll eccentricity filtering method of automatically decision of decomposition level and threshold value
摘要
Abstract
Filtering the signals collected during the process of rolling is the key step for calculating the roll eccentricity of strip rol-ling mill. A roll eccentricity filtering method for auto-decision of decomposition level and a threshold value are proposed in this paper. First, the decomposition level of frequency is determined using the second generation wavelet transform. Second, the threshold value is determined according to the rolling speed and signal frequency range of different level. Third, the signals is filtered. Comparing with the wavelet threshold filtering in the similar wording state, the proposed method and threshold value can accurately reflect collected signals during rolling, and provide the foundation for extracting roll eccentricity signal accurately and effective roll eccentricity compensation.关键词
轧辊偏心/小波变换/阈值降噪Key words
roll eccentricity/wavelet transform/threshold denoise分类
矿业与冶金引用本文复制引用
杨阳,王益群,陈刚..轧辊偏心自动分层确定阈值滤波法[J].燕山大学学报,2013,(5):430-433,441,5.基金项目
河北省自然科学基金资助项目 （）
