Fig. 4From: Realified L1-PCA for direction-of-arrival estimation: theory and algorithmsAlgorithm for estimation of the 2K L1-PCs of rank- 2D data matrix \(\overline {\mathbf {Y}}_{2D \times 2N}\) with cubic (w.r.t. N) asymptotic complexity \(\mathcal {O} \left (N^{3} m^{4}\right)\) (m=1 for K=1; m=2K, for K>1)Back to article page