- 专利标题: Method, system and computer program product for ranging RFID tags
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申请号: US13639104申请日: 2011-04-08
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公开(公告)号: US09244162B2公开(公告)日: 2016-01-26
- 发明人: Ville Viikari , Pekka Pursula
- 申请人: Ville Viikari , Pekka Pursula
- 申请人地址: FI
- 专利权人: Teknologian Tutkimuskeskus VTT
- 当前专利权人: Teknologian Tutkimuskeskus VTT
- 当前专利权人地址: FI
- 优先权: FI20105366 20100409
- 国际申请: PCT/FI2011/050306 WO 20110408
- 国际公布: WO2011/124768 WO 20111013
- 主分类号: H04Q5/22
- IPC分类号: H04Q5/22 ; G01S13/75 ; G01S13/84
摘要:
The invention relates to a method for ranging a radio frequency tag, comprising measuring the modulated backscattering response of the tag at a plurality of frequencies using reader and determining the dispersive properties of the tag from the amplitude of the measured backscattering response. Further, the method comprises determining a position parameter of the tag from the measured modulated backscattering response and the determined dispersive properties of the tag.