?? circevod.m
字號:
function [xec, xoc] = circevod(x)
% signal decomposition into circular-even and circular-odd parts
% --------------------------------------------------------------
% [xec, xoc] = circecod(x)
%
if any(imag(x) ~= 0)
error('x is not a real sequence')
end
N = length(x); n = 0:(N-1);
xec = 0.5*(x + x(mod(-n,N)+1));
xoc = 0.5*(x - x(mod(-n,N)+1));
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