We propose a line-of-sight (LOS)/non-line-of-sight (NLOS) mixture source localization algorithms that utilize the\nweighted block Newton (WBN) and variable step size WBN (VSSWBN) method, in which the weighting matrix is\ndetermined in the form of the inverse of the squared error or as an exponential function with a negative exponent.\nThe proposed WBN and VSSWBN algorithms converge in two iterations; thus, the required number of extra samples in\nthe transient period is negligible. Also, we perform an analysis of the mean square error (MSE) of the weighted block\nNewton method. To verify the superiority of the proposed methods, the MSE performances are compared via\nextensive simulation.
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