Table 1: The Parameters for Different Neural Network

	Norm Vector	Correlation Coefficients	Power Spectrum
Input Neuron Num	9	36	81
Middle Neuron Num	M1: 18; M2: 9; M3: 5	M1: 29; M2: 18; M3: 11	M1: 65; M2: 41; M3: 24
Output Neuron Num	3
Learning Trial	1000
Learning Coefficient	0.01