TY - GEN
T1 - A gradually locating method of indoor locating estimation based on likelihood
AU - Ye, Letian
AU - Liu, Zhihai
AU - Xue, Lingzhou
AU - He, Ping
AU - Geng, Zhi
PY - 2007
Y1 - 2007
N2 - Locating using wireless signal is a popular field now, and the real time indoor locating is a difficult problem for its complexity and sensitivity to environments. This paper proposes a gradually locating method based on Euclidean distance and the maximum likelihood, which maintains both Euclidean distance's robusticity and the maximum likelihood's high precision under complex environments. To reduce the number of supervised vertices in training data required by the grid-matching algorithm, this paper also presents an interpolation method based on the received signal strength (RSS) model in the local area, which successfully simulates the real signal distribution on the interpolation point. By using the above method, we can obtain unbiased locating result, and the locating can approach to the real position steadily as the amount of signals increases.
AB - Locating using wireless signal is a popular field now, and the real time indoor locating is a difficult problem for its complexity and sensitivity to environments. This paper proposes a gradually locating method based on Euclidean distance and the maximum likelihood, which maintains both Euclidean distance's robusticity and the maximum likelihood's high precision under complex environments. To reduce the number of supervised vertices in training data required by the grid-matching algorithm, this paper also presents an interpolation method based on the received signal strength (RSS) model in the local area, which successfully simulates the real signal distribution on the interpolation point. By using the above method, we can obtain unbiased locating result, and the locating can approach to the real position steadily as the amount of signals increases.
UR - http://www.scopus.com/inward/record.url?scp=77954506934&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954506934&partnerID=8YFLogxK
U2 - 10.1145/1378063.1378079
DO - 10.1145/1378063.1378079
M3 - Conference contribution
AN - SCOPUS:77954506934
SN - 9781595938190
T3 - Mobility Conference 2007 - The 4th Int. Conf. Mobile Technology, Applications and Systems, Mobility 2007, Incorporating the 1st Int. Symp. Computer Human Interaction in Mobile Technology, IS-CHI 2007
SP - 91
EP - 97
BT - Mobility Conference 2007 - The 4th Int. Conf. Mobile Technology, Applications and Systems, Mobility 2007, Incorporating the 1st Int. Symp. Computer Human Interaction in Mobile Technology, IS-CHI 2007
T2 - 4th International Conference on Mobile Technology, Applications and Systems, Mobility 2007, Incorporating the 1st International Symposium on Computer Human Interaction in Mobile Technology, IS-CHI 2007
Y2 - 10 September 2007 through 12 September 2007
ER -