www.gusucode.com > SIMULINK Sigma-Delta Toolbox 工具箱matlab源码程序 > SIMULINK Sigma-Delta Toolbox/Sigma-Delta_Toolbox/ds_hann.m

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function w = ds_hann(n)
% function w = ds_hann(n)
% A Hann window of length n. Does not smear tones located exactly in a bin.

% Note: This function was formerly just "hann." Re-naming
% was necessary to avoid a conflict with Mathworks's function
% of the same name.
w = .5*(1 - cos(2*pi*(0:n-1)/n) );