KNN/PFCM HYBRID MEHOD USING GATH-GEVA METHOD FOR INDOOR LOCATION DETERMINATION IN WALN

摘要

PURPOSE: A wireless indoor location measuring method based on a PFCM group using KNN and GG method is provided to estimate a location of a terminal by using an existing AP(Access Point). CONSTITUTION: The first electric wave feature data is stored in a database with a wireless fingerprint method(S110). K reference points are selected by using a KNN method(S120). The k reference points have a first electric wave feature value near a second electric wave feature value. A group of the first electric wave feature data of the k reference points is formed by using a GG method(S130). A group of a minimum distance between a group central vector and the first electric wave feature data is selected(S140). An average of a location coordinate of the reference points belong to the group is produced. A location of a terminal is estimated(S150).