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Table 1 Notations for RMT and data processing

From: A data-driven method to detect and localize the single-phase grounding fault in distribution network based on synchronized phasor measurement

Notations Means
X,x,xij A matrix, a vector, an entry of matrix
XT,xT Transpose of a matrix and a vector
μ(x),σ2(x) Mean, variance for x
S The sample covariance matrix
N,T The row and column size of the split
λ Eigenvalue of the matrix
p,n The row and column size of the matrix
v Eigenvector
\(\tilde {X}\) A standard non-Hermitian matrix
Ω Data source