请教提升小波的问题
请问有谁用过提升小波的工具箱［ＣＡ，ＣＤ］＝lwt(X,W)W是提升小波名，请问有哪些提升小波名约？ 我也想知道 在matlab中help lwt可以 看到：
lshaar = liftwave('haar');//小波基
els = {'p',[-0.125 0.125],0};
lsnew = addlift(lshaar,els);
x = 1:8;//做小波变换的数据
= lwt(x,lsnew)
cA =
1.9445 4.9497 7.7782 10.6066
cD =
0.7071 0.7071 0.7071 0.7071
以下整数提升小波（变换前后都是整数）
lshaarInt = liftwave('haar','int2int');//与前面相比多了‘intint’
lsnewInt = addlift(lshaarInt,els);
= lwt(x,lsnewInt)
cAint =
1 3 5 7
cDint =
1 1 1 1 WNAME的有效值：
The valid values for WNAME are:
'lazy'
'haar',
'db1', 'db2', 'db3', 'db4', 'db5', 'db6', 'db7', 'db8'
'sym2', 'sym3', 'sym4', 'sym5', 'sym6', 'sym7', 'sym8'
Cohen-Daubechies-Feauveau wavelets:
'cdf1.1','cdf1.3','cdf1.5' - 'cdf2.2','cdf2.4','cdf2.6'
'cdf3.1','cdf3.3','cdf3.5' - 'cdf4.2','cdf4.4','cdf4.6'
'cdf5.1','cdf5.3','cdf5.5' - 'cdf6.2','cdf6.4','cdf6.6'
'biorX.Y' , see WAVEINFO
'rbioX.Y' , see WAVEINFO
'bs3': identical to 'cdf4.2'
'rbs3' : reverse of 'bs3'
'9.7': identical to 'bior4.4'
'r9.7' : reverse of '9.7'
Note:
'cdfX.Y' == 'biorX.Y' except for bior4.4 and bior5.5.
'rbioX.Y'is the reverse of 'biorX.Y'
'haar' == 'db1' == 'bior1.1' == 'cdf1.1'
'db2'== 'sym2'and'db3' == 'sym4'
页:
[1]