generate_h.m

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function H = generate_H(nTx, nRx, R, lH, type, PDP_linear)
% H = generate_H(nTx, nRX, R, lH, type)
%
% Generates a H matrix whose correlation properties fit the values
% in given in correlation matrix R. These values can be (complex)
% field correlation coefficients or (real positive) power
% correlation coefficients

if (type == 0) % complex correlation
    C = sqrtm(R);%chol(R);
else % power correlation coefficient
    C  = sqrtm(R.^.5);
end;

H  = zeros(nRx, nTx, lH);
for k = 1:lH
  TildeA   = (C*(randn(nTx*nRx,1)+i*randn(nRx*nTx,1)))./sqrt(2);
  H(:,:,k) = reshape(TildeA, nRx, nTx);
end;