OFDM频谱载波图

x=0:0.1:13; y1=cos(x); y2=cos(0.5*x); y3=cos(2*x); y4=cos(1.5*x); plot(x,y1,'c') hold on plot(x,y2,'b') hold on plot(x,y3,'y') hold on plot(x,y4,'g') hold on axis([0,13,-1.2,1.2]) title('OFDM 包含四个载波的情况') xlabel('时间') ylabel('幅度')