Matlab for the Classic Blackman Window

N = 101; L = 3; No2 = (N-1)/2; n=-No2:No2;
ws = zeros(L,3*N); z = zeros(1,N);
for l=0:L-1
  ws(l+1,:) = [z,cos(l*2*pi*n/N),z];
end
alpha = [0.42,0.5,0.08]; % Classic Blackman
w = alpha * ws;

Figure 3.13 plots the classic Blackman Window and its transform.

Figure 3.13: Classic Blackman window and transform.