Title:
位置決め技法のための確率モデル
Document Type and Number:
Japanese Patent JP3955595
Kind Code:
B2
Abstract:
A model construction module for constructing a probabilistic model of a wireless environment in which a target device communicates using signals that have a measurable signal value, such as signal strength. The model construction module forms several submodels of the wireless environment. Each submodel indicates a probability distribution for signal values at one or more locations in the wireless environment. The module combines the submodels to a probabilistic model of the wireless environment, such that the probabilistic model indicates a probability distribution for signal values at several locations in the wireless environment. Alternatively, the model may insert new locations to a single model based on a combination of existing locations. The combination of submodels or existing locations includes combining the inverse cumulative distribution functions of the submodels or existing locations.
Inventors:
Missicans, Pauli
Millie Maki, Petri
Millie Maki, Petri
Application Number:
JP2004509450A
Publication Date:
August 08, 2007
Filing Date:
May 27, 2003
Export Citation:
Assignee:
Ekahau
International Classes:
G01S3/06; G01S5/02; H04W64/00
Domestic Patent References:
| JP10094040A | ||||
| JP7253446A | ||||
| JP2005528621A | ||||
| JP2004517572A | ||||
| JP2001523915A | ||||
| JP10322761A |
Foreign References:
| US6112095 | ||||
| WO2002030136A1 |
Other References:
Petri Millymaki,"A Probablistic Approach to WLAN User Location Estimation",The Third IEEE Workshop on Wireless Local Area Networks,2001年 9月
清本盛明,「部分観測マルコフ決定過程における位置ベクトルを用いた強化学習手法の提案」,システム制御情報学会論文誌,2001年 2月,Vol.14, No.2,pages 86-91
清本盛明,「部分観測マルコフ決定過程における位置ベクトルを用いた強化学習手法の提案」,システム制御情報学会論文誌,2001年 2月,Vol.14, No.2,pages 86-91
Attorney, Agent or Firm:
Akira Kano