Angle of Arrival Estimation for Passive UHF RFID Tag Backscatter Signal

Author

Meng-Chang Hua ; Guo-Chen Peng ; Yan-Jun Lai ; Hsin-Chin Liu

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan

fYear

2013

fDate

20-23 Aug. 2013

Firstpage

1865

Lastpage

1869

Abstract

Radio frequency identification technology (RFID) is an essential technology in the realm of Internet of things (IoT). One interesting topic in IoT research is to detect the location of an object of interest (OoI). An object with an attached RFID tag can be localized via determining the backscatter signal source of its associated RFID tag. Various RFID tag localization schemes have been proposed. With the knowledge of direction of the tag of interest (ToI) is helpful in estimate the localization of ToI. This work presents new measurement results and some experimental results of the angle of arrival (AoA) estimation of a commercial passive UHF RFID tag.

Keywords

UHF devices; direction-of-arrival estimation; electromagnetic wave scattering; radio direction-finding; radiofrequency identification; radiotelemetry; signal sources; AoA estimation; Internet of things; IoT research; OoI; RFID tag localization scheme; ToI; angle of arrival estimation; object of interest; passive UHF RFID tag backscatter signal source; radiofrequency identification technology; tag of interest; Arrays; Backscatter; Covariance matrices; Estimation; Passive RFID tags; Receivers; AoA; IoT; RFID; array antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Green Computing and Communications (GreenCom), 2013 IEEE and Internet of Things (iThings/CPSCom), IEEE International Conference on and IEEE Cyber, Physical and Social Computing

Conference_Location

Beijing

Type

conf

DOI

10.1109/GreenCom-iThings-CPSCom.2013.346

Filename

6682357