Multipath Assisted Single Base Station Positioning for NLOS Environment

This paper presents a multipath assisted single base station positioning technology in NLOS environment. Firstly, a scattering model is constructed according to the spatial layout near the base station. Secondly, the parameters of multipath signals are processed by a joint clustering algorithm, which are used to establish positioning equations with the help of the spatial layout information of the scattering area model. Finally, particle swarm algorithm based on natural selection (NPSO) is utilized to solve the objective function to acquire the target position. Simulation results show that the NPSO algorithm has better positioning accuracy compared with Levenberg-Marquardt (LM) algorithm and this method can be used in single-station positioning in an outdoor non-line-of-sight (NLOS) environment.