ABSTRACT
Zhang used the wavelet networks to control a robot arm and used a mother wavelet of the form
tf(X ) = ( X T.X - d im (X))e -1/2xTx
In Szu’s work with regard to the classification of phonemes and speaker recognition, a mother wavelet is of the form
t2 eos(l,75t)e-“ , Pati used a combination of sigmoid functions
and his approach has been generalized by Fernando Marar, J Carvalho Filho, and Vaseoneelos [130] to polynomial approxi mation of sigmoid functions.