Detail publikačního výsledku

Phase Difference of Arrival Distance Estimation for RFID Tags in Frequency Domain

POVALAČ, A.; ŠEBESTA, J.

Originální název

Phase Difference of Arrival Distance Estimation for RFID Tags in Frequency Domain

Anglický název

Phase Difference of Arrival Distance Estimation for RFID Tags in Frequency Domain

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The paper gives an overview of phase based ranging techniques, focusing on the phase difference of arrival method measured in frequency domain (FD-PDoA). After a theoretical overview of distance estimation and localization, it introduces an experimental RFID front-end prototype used for FD-PDoA measurements. Proposed modular design is very flexible and allows easy replacement of any block, as well as direct access to all required low-level signals. The main part of the article is devoted to range estimation experiments in an anechoic chamber, using the developed front-end and signal processing in a PC with MATLAB. Several measurement problems are addressed, such as demodulator phase imbalance correction, wrapped phase recovery, etc. Ranging is performed with common passive EPC Gen2 RFID tags.

Anglický abstrakt

The paper gives an overview of phase based ranging techniques, focusing on the phase difference of arrival method measured in frequency domain (FD-PDoA). After a theoretical overview of distance estimation and localization, it introduces an experimental RFID front-end prototype used for FD-PDoA measurements. Proposed modular design is very flexible and allows easy replacement of any block, as well as direct access to all required low-level signals. The main part of the article is devoted to range estimation experiments in an anechoic chamber, using the developed front-end and signal processing in a PC with MATLAB. Several measurement problems are addressed, such as demodulator phase imbalance correction, wrapped phase recovery, etc. Ranging is performed with common passive EPC Gen2 RFID tags.

Klíčová slova

RFID; UHF; RTLS; ranging; FD-PDoA; EPC Gen2

Klíčová slova v angličtině

RFID; UHF; RTLS; ranging; FD-PDoA; EPC Gen2

Autoři

POVALAČ, A.; ŠEBESTA, J.

Rok RIV

2012

Vydáno

15.09.2011

Místo

Sitges, Barcelona, Spain

ISBN

978-1-4577-0027-9

Kniha

Proceedings of the 2011 IEEE International Conference on RFID-Technologies and Applications

Strany od

180

Strany do

185

Strany počet

6

BibTex

@inproceedings{BUT73435,
  author="Aleš {Povalač} and Jiří {Šebesta}",
  title="Phase Difference of Arrival Distance Estimation for RFID Tags in Frequency Domain",
  booktitle="Proceedings of the 2011 IEEE International Conference on RFID-Technologies and Applications",
  year="2011",
  pages="180--185",
  address="Sitges, Barcelona, Spain",
  isbn="978-1-4577-0027-9"
}