Digital Modulation Identification Model Using Wavelet Transform and Statistical Parameters

Table 1

Subsystem classification—decision rule.

Classification system	Decision rules
Subsystem1	If ${\mu }_1<T_1\to$ M-ary PSK signal
	If ${\mu }_2>T_{P1}\to$ BPSK signal
	else if ${\mu }_2>T_{P2}\to$ QPSK signal
	else if ${\mu }_2>T_{P3}\to$ 8PSK signal
	else if ${\mu }_2>T_{P4}\to$ 16PSK signal
	else $\to$ 32PSK signal and above
	end
	end
	end
	end
	else $\to$ M-ary QAM signal
	If ${\mu }_2<T_{Q1}\to$ 2QAM signal
	else if ${\mu }_2<T_{Q2}\to$ 4QAM signal
	else if ${\mu }_2<T_{Q3}\to$ 8QAM signal
	else if ${\mu }_2<T_{Q4}\to$ 16QAM signal
	else $\to$ 32QAM signal and above
	end
	end
	end
	end
	end
Subsystem2	If ${\mu }_2>T_2\to$ GMSK signal
	else $\to$ M-ary FSK signal
	end