代码搜索结果

function y=RecursiveIFFT(a) %递归IFFT n=length(a); %向量的长度 if n==1 y=a; %递归出口 else wn=complex(cos(2*pi/n),sin(2*pi/n)

ezplot('x*sin(10*pi*x)+2',[-1,2]) f=inline('-x.*sin(10*pi*x)-2','x'); v=[]; for x0=[-1:0.8:1.5,1.5:0.1:2] x1=fmincon(f,x0,[],[],[],[],-1,2); v=[v; x0,x1,f(x1)]; end [a,b,c,d]=gaopt([-1,2]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 空间谱估计中 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% clear close all clc %%%%%%%%%%%%%%%%%%%%%%% generate signal %%%%%%%%%%%%%%%%% f0=5000;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 空间谱估计中 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% clear close all clc %%%%%%%%%%%%%%%%%%%%%%% generate signal %%%%%%%%%%%%%%%%% f0=5000;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 空间谱估计中 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% clear close all clc %%%%%%%%%%%%%%%%%%%%%%% generate signal %%%%%%%%%%%%%%%%% f0=5000;

% ex_07_07_1.m : 习题 7.7 clear all; N=31; for i=0:N-1 w(i+1)=abs(sin(2*pi*i/N))/pi-(1-2*abs(i-N/2)/N)*cos(2*pi*i/N); end [W,f]=freqz(w,1,256,'whole',1); subplot(221); t=0:N-1; stem(t,w

% ex_07_05_1.m : 习题 7.5 clear all; order = 54; f = [0, 0.05, 0.1, 0.15, 0.18, 0.25, 0.3, 0.36, 0.41, 0.5] * 2; a = [0, 0, 1, 1, 0, 0, 1, 1, 0, 0]; wtx = [1, 10, 1, 10, 1]; b = firpm(order, f

clear clc subplot(2,2,1), fplot('humps',[0 1]) subplot(2,2,2), fplot('abs(exp(-j*x*(0:9))*ones(10,1))',[0 2*pi]) subplot(2,2,3), fplot('[tan(x),sin(x),cos(x)]',2*pi*[-1 1 -1 1]) subplot(2,2,4), f

function y = FM(x,beta) [r, c] = size(x); if r*c == 0 y = []; return; end; if (r == 1) x = x(:); len = c; else len = r; end; Df = 2*pi*beta*100; x = interp(x,20)

t=0:pi/20:2*pi; y1=sin(t); y2=cos(t); figh=figure('Position',[30,100,800,350]); axes('GridLineStyle','-.','XLim',[0,2*pi],'YLim',[-1,1]); line('XData',t,'YData',y1,'LineWidth',2); line(t,y2); g