Title:
マルチパス環境における位置追跡の方法及び装置
Document Type and Number:
Japanese Patent JP4614974
Kind Code:
B2
Abstract:
The present invention provides a method of calibrating a wireless tracking system and a method of tracking a mobile unit in a wireless local area network. The method includes providing at least one calibration signal using a mobile unit having a first plurality of antennae while the mobile unit is proximate at least one predetermined location and receiving a plurality of signals at a second plurality of antennae in response to providing the at least one calibration signal. The method also includes determining a portion of a transmission matrix using the plurality of received signals and the at least one calibration signal and associating the portion of the transmission matrix with the predetermined location.
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Inventors:
Sharonie Jacob
Application Number:
JP2006549401A
Publication Date:
January 19, 2011
Filing Date:
January 07, 2005
Export Citation:
Assignee:
Symbol Technologies, Inc.
International Classes:
H04W64/00; H04W4/02; H04W16/28
Domestic Patent References:
| JP2003258770A | ||||
| JP2002532691A |
Foreign References:
| US6108557 | ||||
| US6112095 |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda