纸张横向定量数据的小波去噪  

Application of Wavelet Denoise Method in Paper Cross Direction Basis Weight Data Treatment

作　　者：刘文波[1] 汤伟[1] 王樨[1] 王孟效[1] 

机构地区：[1]陕西科技大学电气与信息工程学院,陕西西安710021

出　　处：《中国造纸学报》2015年第2期53-57,共5页Transactions of China Pulp and Paper

基　　金：陕西省科技计划经费资助项目(2014K05-03);陕西省科技统筹创新工程计划项目(2012KTCQ01-19);陕西科技大学科研启动基金项目(BJ11-07)

摘　　要：针对纸张横向定量控制中的测量数据去噪,在对横向定量测量数据特性进行分析的基础上,提出了一种改进阈值小波去噪方法,并进行了仿真对比分析。结果表明,相对于传统去噪方法,该方法具有较好的去噪效果,去噪后的波形更为平滑,更接近于原始横向定量数据,有利于进一步实施控制。In connection with denoising of the measure data in paper cross direction basis weight control, an improved threshold wavelet method was presented after analyzing the character of the data, and simulation comparison analysis was carried out. It was shown that this method was better than the traditional methods. The wave profile after denoising was smoother and closer to original cross direction basis weight data, thus it was favorable for implementing control.

关 键 词：横向定量 小波 阈值 去噪 

分 类 号：TS761[轻工技术与工程—制浆造纸工程] TP273.5[自动化与计算机技术—检测技术与自动化装置]