代码搜索结果

N=128; % 采样点数 T=1; % 采样时间终点 t=linspace(0,T,N); % 给出N个采样时间ti(I=1:N) x=12*sin(2*pi*10*t+pi/4)+5*cos(2*pi*40*t); % 求各采样点样本值x dt

x=0:pi/100:2*pi; y1=2*exp(-0.5*x); y2=cos(4*pi*x); plot(x,y1,x,y2) title('x from 0 to 2{\pi}'); %加图形标题 xlabel('Variable X'); %加X轴说明 ylabel('Variable Y');

x=0:pi/10:2*pi; y=2*sin(x); subplot(2,2,1);bar(x,y,'g'); title('bar(x,y,''g'')');axis([0,7,-2,2]); subplot(2,2,2);stairs(x,y,'b'); title('stairs(x,y,''b'')');axis([0,7,-2,2]); subplot(2,2,3);ste

x=0:pi/50:2*pi; y=sin(x); z=cos(x); plot(x,y,'r',x,z,'g'); %绘制两根不同曲线 Hl=get(gca,'Children'); %获取两曲线句柄向量Hl for k=1:size(Hl) if get(Hl(k),'Color')==[0 1 0] %[0 1 0]代表

x=0:pi/100:2*pi; y1=0.2*exp(-0.5*x).*cos(4*pi*x); plot(x,y1) hold on y2=2*exp(-0.5*x).*cos(pi*x); plot(x,y2); hold off

function shili05 h0=figure('toolbar','none',... 'position',[200 150 450 250],... 'name','实例05'); t=0:pi/10:2*pi; [x,y]=meshgrid(t); subplot(2,2,1) plot(sin(t),cos(t)) axis equal sub

function shili06 h0=figure('toolbar','none',... 'position',[200 150 450 400],... 'name','实例06'); t=0:pi/10:2*pi; h=plot(t,sin(t)); xlabel('t=0到2\pi','fontsize',16); ylabel('sin(t)','fon

%生成基础测量数据 x=-3*pi:3*pi; y=x; [X,Y]=meshgrid(x,y); R=sqrt(X.^2+Y.^2)+eps; Z=sin(R)./R; [dzdx,dzdy]=gradient(Z); dzdr=sqrt(dzdx.^2+dzdy.^2); %绘制基础数据图形 surf(X,Y,Z,abs(dzdr)) colormap(spring) a

%蒙特卡罗仿真（AWGN信道，硬判决，2PSK） % Eb=2; %每比特的能量,能量越大，卷积译码的误码率越小 k=1; G=[1 0 1;1 1 1]; input=[1 0 1 0 1 1 1 0]; dsource=cnv_encd(G,k,input); N=length(dsource); n=size(G,1); %得到码字长度 Ec=k*Eb/n;

function[g1,g2]=gngauss(m,sgma) if nargin == 0 m=0;sgma=1; elseif nargin == 1 m=0;sgma=1; end; u=rand; z=sgma*(sqrt(2*log(1/(1-u)))); u=rand; g1=m+z*cos(2*pi*u); g1=m+z*sin(2*pi*u)