Title :
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
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;
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
DOI :
10.1109/GreenCom-iThings-CPSCom.2013.346
