基于GA-WPT-ELM的6061铝合金表面粗糙度预测

谭芳芳,朱俊江,严天宏,高志强,何岭松

Surface roughness prediction of 6061 aluminum alloy based on GA-WPT-ELM

Fang-fang TAN,Jun-jiang ZHU,Tian-hong YAN,Zhi-qiang GAO,Ling-song HE

表 2 小波包分解的母小波类型

Tab.2 Mother wavelets of wavelet packet decomposition

类型 族系 Ψ 正交 Daubechies db2,db3,db4,db5,db6,db7,db8,db9, db10,db11,db12,db13,db14 正交 Haar Haar 正交 Coiflets coif1,coif2,coif3,coif4,coif5 正交 Symmlets sym2,sym3,sym4,sym5,sym6,sym7, sym8 双正交 Biorthogonal bior1.3,bior1.5,bior2.2,bior2.4,bior2.6, bior2.8,bior3.1,bior3.3,bior3.5,bior3.7, bior3.9,bior4.4,bior5.5,bior6.8