公开(公告)号：US09733088B2

公开(公告)日：2017-08-15

申请号：US15032060

申请日：2013-10-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Souvik Sen ,  Kyu Han Kim ,  Jindan Zhu ,  Prasant Mohapatra

IPC: G01S19/48 ,  G01C21/14 ,  G01S1/08 ,  G01S5/02 ,  H04W4/04 ,  G01C21/20 ,  H04W4/02 ,  H04W84/12

CPC classification number: G01C21/14 ,  G01C21/206 ,  G01S1/08 ,  G01S5/0252 ,  G01S5/0263 ,  H04W4/027 ,  H04W4/043 ,  H04W84/12

Abstract: According to an example, a signal space based navigation apparatus may receive traces of wireless signal observations and corresponding pedestrian deadreckoning (PDR) traces between different ones of the wireless signal observations from a plurality of user devices. A plurality of wireless clusters may be generated based on the traces of wireless signal observations. A PDR displacement vector may be generated between two or more of the wireless clusters based on the two or more of the wireless clusters and a subset of the PDR traces corresponding to the two or more of the wireless clusters. A sensing map may be generated based on the plurality of wireless clusters and a plurality of PDR displacement vectors including the PDR displacement vector.