METHOD FOR ACCURACY ENHANCEMENT FOR UWB INDOOR NON-LOS LOCATION

摘要

A correction completion method for UWB(ULTRA-WIDEBAND) radiodetermination at an indoor non-LoS(Light of Sight) environment is provided to improve the determination accuracy by correcting errors due to a signal propagation effect, and performing the maximum likelihood estimation and using a ray tracer. A virtual propagation path and a velocity are obtained by using a ray-tracer having a non-LoS environment property within a non-LoS environment. A virtual track of a target position is obtained by using the ray-tracer through the virtual propagation path and the velocity based on a propagation time. The target position is estimated by finding a node of the track, or an approximate value through the virtual track.