gusucode.com > 基于simulink的数字信号调制与解调的仿真源码程序 > code/演示程序及子程序适用于matlab 7.0及以上版本/fm1.m
function fm1() cla M = 2; t = 0:0.001:0.999; m = randint(10, 1, M)'; df = 50; g = 2*m(ceil(10*t+0.01))-1; %生成基带信号 s = cos(2*pi*(25+g*df).*t); %2FSK调制信号 h=plot(t, m(ceil(10*t+0.01))+2,'b',t, s,'r'); set(h,'linewidth',2); axis([0, 1, -1.2, 3.5]); xlabel('2FSK调制信号') grid;