代码搜索结果

t=0:0.001:1; x1=sin(2*pi*5*t); subplot(2,4,1); plot(t,x1); x2=sin(2*pi*8*t); subplot(2,4,2); plot(t,x2); x=x1+x2; subplot(2,4,3);%信号图 plot(t,x); xl=fft(x); subplot(2,4,4);%信号频谱 plot(abs(x

% il3_8fun.m function f=il3_8fun(x,p) f=1/sqrt(2*pi)*exp((-(x-p).^2)/2).*log2(2./(1+exp(-2*x.*p)));

% script that generates the figure 3.4 of Carrier modulation chapter snrindB=0:0.25:18; for i=1:length(snrindB), snr=10^(0.1*snrindB(i)); P2(i)=Qfunct(sqrt(2*snr)); P4(i)=2*Qfunct(sqrt(4*sn

(2,"include") (2,"fstream") (2,"include") (2,"string") (2,"using") (2,"namespace") (2,"std") (5,";") (2,"ifstream") (2,"fin") (5,"(") (2,"alpha") (2,"in") (5,)) (5,";") (2,"ofstream")

#include #include using namespace std; ifstream fin("alpha.in"); ofstream fout("alpha.out"); bool finish, hash[256], used[27]; int n, stk[27]; string a, b, c; st

t = linspace(-2*pi,2*pi,10); h = stem(t,cos(t),'fill','--'); set(get(h,'BaseLine'),'LineStyle',':') set(h,'MarkerFaceColor','red')

x = -pi:pi/10:pi; y = tan(sin(x)) - sin(tan(x)); plot(x,y,'--rs','LineWidth',2,... 'MarkerEdgeColor','k',... 'MarkerFaceColor','g',... 'MarkerSiz

--------------- 图形1： 原点 是 (20, 200); -- 设置原点的偏移量 旋转角度 是 0; -- 不旋转 横纵比例 是 (40, 40); -- 设置横纵比例 令 t 自 0 至 2*pi+pi/50 步长 pi/50 绘制 (t, -sin(t)); -- 画T的轨迹 原点 是 (20, 240);

snr=10; N=input('number'); %数据长度 Es=3; g=[1 0 1;0 0 1]; %卷积码编码器两路的冲激响应 x=round(rand(1,N)); %产生信源 for i=1:N/2; %串并变换 x1(i)=x(2*i-1); x2(i)=x(2*i); end; z=cnvc(g,x1,x2); %进行(3,2,3)卷积码编码

% dm09301 % 周期方波信号频谱分析 function CTFS_SQ % 绘制并观察周期方波信号频谱 % Nf：傅里叶级数展开的项数 % an：各次谐波余弦项系数 display('Please input the value of Nf '); Nf = input('Nf = '); an = zeros(Nf+1,1); an(1) = 0; fo