www.gusucode.com > 调制识别 基于决策论的通信信号调制识别实现matlab源码程序 > moulation classification/key feature simulink/Mp1_fig.m
clear;fb=500;fc=2000;fs=12000;Ac=1; for i=1:30 for k=1:100 d2=randint(1,200,2);d4=randint(1,200,4);d8=randint(1,200,8); s3=psk2(d2,fb,fc,fs,Ac);s4=psk4(d4,fb,fc,fs,Ac);s5=psk8(d8,fb,fc,fs,Ac); ss3=awgn(s3,i,'measured');ss4=awgn(s4,i,'measured');ss5=awgn(s5,i,'measured'); Map13(k)=Mp1_func(ss3,fs,fc);Map14(k)=Mp1_func(ss4,fs,fc);Map15(k)=Mp1_func(ss5,fs,fc); end Mp13(i)=mean(Map13);Mp14(i)=mean(Map14);Mp15(i)=mean(Map15); end plot(Mp13,'-*') hold on plot(Mp14,'-^') plot(Mp15,'-s') xlabel('snr');ylabel('Mp1'); grid legend('psk2','psk4','psk8',0);