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/Mp2_fig.m
clear;fb=500;fc=2000;fs=12000;Ac=1; for i=1:30 for k=1:100 d4=randint(1,300,4);d8=randint(1,300,8); s4=psk4(d4,fb,fc,fs,Ac);s5=psk8(d8,fb,fc,fs,Ac); ss4=awgn(s4,i,'measured');ss5=awgn(s5,i,'measured'); Map24(k)=Mp2_func(ss4,fs,fc);Map25(k)=Mp2_func(ss5,fs,fc); end Mp24(i)=mean(Map24);Mp25(i)=mean(Map25); end plot(Mp24,'-*');hold on; plot(Mp25,'-^') xlabel('snr');ylabel('Mp2'); grid legend('psk4','psk8',0);