... function of the number of sources, Ns, is the vector of parametersneeded for the model that generated the data Y. The criteria are composed of the negative of the log-likelihood function of the ... Knis the correlation matrix of the noise, S is the matrix whose columns correspond to the vector representations of the signals, Sis the conjugate transpose of S, and C is the matrix of the correlations ... algorithms then exploit the form of the spatial correlation matrix, R, for the array. The spatial correlation matrix is the M × M matrix formed by correlating the vector of the Fouriertransforms of the...