Generalized SLOP algorithm for nonline-of-signt mobile location

A generalized straight-lines-of-position (GSLOP) algorithm for mobile location is proposed based on the time-of- arrival measurement model with the consideration of nonline- of-sight (NLOS) propagation. This algorithm uses cut-off frequency measurement of wireless channel, and the covariance matrix of measurement noises to achieve a better performance than the conventional SLOP method.