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无源超高频RFID系统识别区域分析及优化

佐磊 何怡刚 李兵 朱彦卿 方葛丰

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无源超高频RFID系统识别区域分析及优化

佐磊, 何怡刚, 李兵, 朱彦卿, 方葛丰

Analysis and improvement for UHF RFID reading region in real environments

Zuo Lei, He Yi-Gang, Li Bing, Zhu Yan-Qing, Fang Ge-Feng
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  • 基于射频识别技术原理及射线跟踪理论, 导出了实际环境中射频识别系统完整传播链路模型. 提出基于目标区域识别率的系统性能评估方法, 并讨论了其主要影响因素. 结合电磁波传播理论及相干干扰抵消原理, 提出标签集及相位开关目标区域识别率优化方法.在室内多径环境下, 测试了采用标签集及相位开关优化方法的目标区域识别率. 测试结果表明, 两种方法下的系统目标区域识别率分别提高10%和7.6%.
    The reading region of ultra high frequency radio-frequency identification (UHF RFID) system is affected by polarization mismatch, reader antenna height, coherent interference and so on. Based on the principles of RFID technology and ray-tracing method, a complete propagation model in real environments is derived. Utilizing recognition rate of target region (RRTR), a method of evalualing the performances of a system is presented. In order to obtain the maximization of RRTR, two solutions including tag diversity and phase switch are proposed, which combines the theories of electromagnetic propagation and coherent interference suppression. The values of RRTR under different parameters are measured in outdoor and indoor environments with a commodity hardware. The measurement results show that the values of RRTR can be enhanced by 10% and 7.6% with the two solutions respectively.
    • 基金项目: 国家杰出青年基金(批准号: 50925727)、国家自然科学基金(批准号: 60876022)、国家自然科学基金青年科学基金(批准号: 51107034)、国防预研重大项目(批准号: C1120110004)和湖南省教育厅科学研究项目(批准号: 11C0479)资助的课题.
    • Funds: Project supported by the National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 50925727), the National Natural Science Foundation of China (Grant No. 60876022), the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 51107034), the National Defense Advanced Research Project (Grant No. C1120110004), and the Research Foundation of Education Bureau of Hunan Province, China (Grant No. 11C0479).
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    Marrocco G 2011 Proc. IEEE Trans. Antennas Propag. 59 1019

    [2]

    Griffin J D, Durgin G D 2009 Proc. IEEE Trans. Antennas Propag. 51 11

    [3]

    Hou Z G, He Y G, Li B, She K, Zhu Y Q 2010 Acta Phys. Sin. 59 5606 (in Chinese) [侯周国, 何怡刚, 李兵, 佘开, 朱彦卿 2010 物理学报 59 5606]

    [4]

    Tang Z J, He Y G 2009 Acta Phys. Sin. 58 5126 (in Chinese) [唐志军, 何怡刚 2009 物理学报 58 5126]

    [5]

    Li B, He Y G, Hou Z G, She K, Zuo L 2011 Acta Phys. Sin. 60 084202 (in Chinese) [李兵, 何怡刚, 侯周国, 佘开, 佐磊 2011 物理学报 60 084202]

    [6]

    Marrocco G, Di Giampaolo E, Aliberti R 2009 Proc. IEEE Trans. Antennas Propag. 51 44

    [7]

    Abbak M, Tekin I 2009 Proc. IEEE Trans. Antennas Propag. 51 185

    [8]

    Feuerstein M J, Blackard K L, Rappaport T S, Seidel S Y, Xia H H 1994 IEEE Trans. Vehicular Technol. 43 487

    [9]

    Nikitin P V, Rao K V S, Martinez R, Lam S F 2009 IEEE Trans. Microwave Theory Technol. 57 1297

    [10]

    Nikitin P V, Rao K V S 2008 IEEE International Conference on RFID Las Vegas, USA, April 16-18, 2008, p277

  • [1]

    Marrocco G 2011 Proc. IEEE Trans. Antennas Propag. 59 1019

    [2]

    Griffin J D, Durgin G D 2009 Proc. IEEE Trans. Antennas Propag. 51 11

    [3]

    Hou Z G, He Y G, Li B, She K, Zhu Y Q 2010 Acta Phys. Sin. 59 5606 (in Chinese) [侯周国, 何怡刚, 李兵, 佘开, 朱彦卿 2010 物理学报 59 5606]

    [4]

    Tang Z J, He Y G 2009 Acta Phys. Sin. 58 5126 (in Chinese) [唐志军, 何怡刚 2009 物理学报 58 5126]

    [5]

    Li B, He Y G, Hou Z G, She K, Zuo L 2011 Acta Phys. Sin. 60 084202 (in Chinese) [李兵, 何怡刚, 侯周国, 佘开, 佐磊 2011 物理学报 60 084202]

    [6]

    Marrocco G, Di Giampaolo E, Aliberti R 2009 Proc. IEEE Trans. Antennas Propag. 51 44

    [7]

    Abbak M, Tekin I 2009 Proc. IEEE Trans. Antennas Propag. 51 185

    [8]

    Feuerstein M J, Blackard K L, Rappaport T S, Seidel S Y, Xia H H 1994 IEEE Trans. Vehicular Technol. 43 487

    [9]

    Nikitin P V, Rao K V S, Martinez R, Lam S F 2009 IEEE Trans. Microwave Theory Technol. 57 1297

    [10]

    Nikitin P V, Rao K V S 2008 IEEE International Conference on RFID Las Vegas, USA, April 16-18, 2008, p277

计量
  • 文章访问数:  8623
  • PDF下载量:  605
  • 被引次数: 0
出版历程
  • 收稿日期:  2012-01-07
  • 修回日期:  2012-06-01
  • 刊出日期:  2012-12-05

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