hosmatrix.m

基于二阶和高阶统计量的MIMO系统盲信道估计

function A = hosmatrix(N,r)
%	hosmatrix.m
%
%	This function generate a matrix consists of only 1 and 0 for the
%  phase estimation method proposed in the following paper.
%
% Reference: 
%  [1] Binning Chen and Athina P. Petropulu, "Frequency Domain Blind 
%      MIMO System Identification Based On Second- And Higher-Order 
%      Statistics," IEEE Transactions on Signal Processing, 
%      vol. 49(8), pp. 1677-1688, August 2001.
%
%  Communications and Signal Processing Laboratory
%  ECE Department, Drexel University
%  Philadelphia, PA 19104, USA
%  http://www.ece.drexel.edu/CSPL
%-------------------------------------------------------------------------------

A=diag(ones(N-r-1,1),r)+diag((-1)*ones(N-1,1));
b=diag(ones(r-1,1),r-N);

if (nnz(b) > 0)
  A = A+b;
end