crsdiag.m

来自「里面囊括了基于matlab滤波器设计的各种.m文件」· M 代码 · 共 10 行

% A = crsdiag(M)
% Provide a cross diagnal matrix. The diagnal
% elements of the matrix will be 1,-1,1,-1 ...

function A = crsdiag(M)
for I = 1:M
  a(I) = (-1)^(I-1);
end
A = diag(a);