Talk:Sample matrix inversion

Number of samples
Currently the lead says


 * Using K samples x(k), k=1,2,...,K-1

This is only K-1 samples. Either K should be changed to K-1 or vice versa. Also, in the equation


 * $$\hat{R}_u (k) = 1/k \sum(x(k) x^H(k)).$$

I think the first two appearances of k should be K, since k is just the index of the summation. Duoduoduo (talk) 02:57, 6 August 2013 (UTC)