先生,可能正在修改x数据
clc;
清晰的所有;
关闭所有;
T = [0:300 500.5:700.5];
S = 2*sin(0.1*pi*t) + sin(0.02*pi*t);
X = S + rand(size(t));
Y = nufft(X,t);
N =长度(t);
F = (0:n-1);
情节(f, abs (Y))