KNN/ IMPROVED PCM HYBRID MEHOD FOR INDOOR LOCATION DETERMINATION IN WALN

摘要

PURPOSE: wireless indoor infield measurement method is based on KNN (k nearest neighbor) and PCM (C-Mean of possible doctrine), that is, formed wireless fingerprint formula database by measure signal-to-noise ratio from several APs. ;The storage of CONSTITUTION: the first electric wave characteristic in the database and with wireless fingerprint type (S110). Utilize the KNN (S120) of selection k points. The k reference points of one group of first electric wave characteristic are formed (S130). The k reference points of one group of position coordinates are formed (S140). (S150) is formd in first electric wave feature group data and said reference point position coordinate base group including reference point including group. The center of one group of square value with minimum range and the first electric wave characteristic vector are selected (S160). The coordinate of the reference point of mean place belongs to selected generation. The location estimation (S170) of terminal. ;The 2012 of copyright KIPO submissions