Introduction - If you have any usage issues, please Google them yourself
		 
 SensorPositons: (Dim x M) matrix, each column is a sensor position and 
 first column is the reference sensor
 the sensors should not lie in one plane or line
 r: a (M-1) x 1 vector of TDOA measurements times signal propagation speed
 M is the number of sensors and should be at least Dim+2
 Q: the covariance matrix of the r vector
 SourceLocation: estimated source location
 
 Note: W1 is updated 3 times (RptCnt=3) in Stage-1, however in most
 cases updating W1 once (RptCnt=1) is sufficient.
 
 The program can be used for 2D(Dim=2) or 3D(Dim=3) localization
 
 
 Ming Sun, K. C. Ho 08-01-2009
 10-01-2010, revised
 
 Copyright (C) 2009
 Computational Intelligence Signal Processing Laboratory
 University of Missouri
 Columbia, MO 65211, USA.
 hod@missouri.edu