Multipath error analysis of radio interferometric positioning system in wireless sensor networks

A simple model of multipath error is proposed in condition of mirror's reflecting according to the physical characteristic of multipath signal.Then multipath error analysis of radio interferometric positioning system(RIPS)is presented.The relationships between RIPS measurement and multipath parameters including attenuation factor,antenna height and horizontal distance of sensor nodes are studied.The results of simulation analysis verify that high precision localization must take multipath effect into account.