物理层的超高频RFID标签信号分离

吴海锋; 曾玉

doi:10.11959/j.issn.1000-436x.2015030

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物理层的超高频RFID标签信号分离

学术论文 | 更新时间：2024-06-05

- 物理层的超高频RFID标签信号分离
- Passive UHF tag collision resolution on PHY layer
- 通信学报 2015年36卷第2期页码：20-28
- 作者机构：
  
  云南民族大学电气信息工程学院，云南昆明 650500
- 作者简介：
  
  [ "吴海锋（1977-），男，云南昆明人，博士，云南民族大学教授，主要研究方向为RFID技术、通信信号处理。" ]
  [ "曾玉（1981-），女，安徽无为人，云南民族大学讲师，主要研究方向为多址接入通信。E-mail:yv.zeng@gmail.com。" ]
- 基金信息：
  
  国家自然科学基金资助项目(61262091);云南省应用基础研究计划基金资助项目(2011FB083);云南省教育厅科学重大基金资助项目(ZD2011009);云南省教育厅科学重点基金资助项目(2014Z093);云南民族大学创新团队建设基金资助项目(The Youth of Seventeenth Batches of Leaders in Academic and Technical Talents Project of Yunnan Province)
- DOI：10.11959/j.issn.1000-436x.2015030
  中图分类号： TP393.04
- 网络出版日期：2015-02，
  
  纸质出版日期：2015-02-25
- 稿件说明：
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吴海锋, 曾玉. 物理层的超高频RFID标签信号分离[J]. 通信学报, 2015,36(2):20-28.

Hai-feng WU, Yu ZENG. Passive UHF tag collision resolution on PHY layer[J]. Journal on communications, 2015, 36(2): 20-28.
吴海锋, 曾玉. 物理层的超高频RFID标签信号分离[J]. 通信学报, 2015,36(2):20-28. DOI： 10.11959/j.issn.1000-436x.2015030.

Hai-feng WU, Yu ZENG. Passive UHF tag collision resolution on PHY layer[J]. Journal on communications, 2015, 36(2): 20-28. DOI： 10.11959/j.issn.1000-436x.2015030.

摘要

提出一种分离冲突信号算法，先用动尺度变换将冲突信号变换至时—尺域并得到变换矩阵，然后由最小二乘和最小均方误差准则将冲突信号分离以检测标签信号。仿真结果表明，相比传统标签分离方法，所提方法仅采用单接收天线就可分离2个以上冲突标签信号，并在无捕获效应下也具有良好分离性能。

Abstract

An algorithm was proposed to separate the collided signals on the PHY layer.The proposed algorithm firstly adopts a dynamic-scale transformation to transform the collided signals to time-scale domains.And then

a transforming matrix would be obtained from the transformation.Finally

least square and minimum mean square error criterion are utilized to separate the collided tag signals.Simulation results show that

in contrast to the conventional signal separation approaches

the proposed algorithm can separate more than two tag signals under single-antenna condition and have better performance of separation even without capture effect.

关键词

Keywords

references

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