The effects of single bit quantization on direction of arrival estimation of UHF RFID tags

Jordy Huiting; André B.J. Kokkeler; Gerard J.M. Smit

doi:10.1109/RFID-TA.2016.7750731

The effects of single bit quantization on direction of arrival estimation of UHF RFID tags

Jordy Huiting, André B.J. Kokkeler, Gerard J.M. Smit

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

3 Citations (Scopus)

63 Downloads (Pure)

Abstract

Phased arrays can be used to estimate the direction-of-arrival (DOA) of UHF RFID tags. To save on energy consumption and hardware costs, in this paper we explore the possibility of using single bit analog-to-digital converters for our phased array setup. This setup consists of an off-the-shelf Impinj R2000 reader and a custom phased array with 4 receiving channels. The proposed system quantizes the baseband quadrature signals individually. As there is a direct relation between the correlation coefficient of a quantized signal and an unquantized signal, the error introduced by quantization can be corrected. The experimental results show that single bit quantization can be used for DOA estimation and the mean error increases only slightly. The proposed correction achieves better results than uncorrected quantized estimation, at the cost of the need for signal power measurements.

Original language	English
Title of host publication	2016 IEEE International Conference on RFID Technology and Applications (RFID-TA)
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	55-60
Number of pages	6
ISBN (Print)	978-1-5090-1409-5
DOIs	https://doi.org/10.1109/RFID-TA.2016.7750731
Publication status	Published - 21 Sept 2016
Event	2016 IEEE International Conference on RFID Technology and Application, RFID-TA 2016 - Shunde, China Duration: 21 Sept 2016 → 22 Sept 2016 http://2016.ieee-rfid-ta.org/

Conference

Conference	2016 IEEE International Conference on RFID Technology and Application, RFID-TA 2016
Abbreviated title	RFID-TA
Country/Territory	China
City	Shunde
Period	21/09/16 → 22/09/16
Internet address	http://2016.ieee-rfid-ta.org/

Keywords

Phased array
MUSIC
Quantization
UHF RFID

Access to Document

10.1109/RFID-TA.2016.7750731

ArticleAccepted author version, 214 KB

Cite this

@inproceedings{45b8d606cd794678add6917f63318db3,

title = "The effects of single bit quantization on direction of arrival estimation of UHF RFID tags",

abstract = "Phased arrays can be used to estimate the direction-of-arrival (DOA) of UHF RFID tags. To save on energy consumption and hardware costs, in this paper we explore the possibility of using single bit analog-to-digital converters for our phased array setup. This setup consists of an off-the-shelf Impinj R2000 reader and a custom phased array with 4 receiving channels. The proposed system quantizes the baseband quadrature signals individually. As there is a direct relation between the correlation coefficient of a quantized signal and an unquantized signal, the error introduced by quantization can be corrected. The experimental results show that single bit quantization can be used for DOA estimation and the mean error increases only slightly. The proposed correction achieves better results than uncorrected quantized estimation, at the cost of the need for signal power measurements.",

keywords = "Phased array, MUSIC, Quantization, UHF RFID",

author = "Jordy Huiting and Kokkeler, {Andr{\'e} B.J.} and Smit, {Gerard J.M.}",

year = "2016",

month = sep,

day = "21",

doi = "10.1109/RFID-TA.2016.7750731",

language = "English",

isbn = "978-1-5090-1409-5",

pages = "55--60",

booktitle = "2016 IEEE International Conference on RFID Technology and Applications (RFID-TA)",

publisher = "IEEE",

address = "United States",

note = "2016 IEEE International Conference on RFID Technology and Application, RFID-TA 2016, RFID-TA ; Conference date: 21-09-2016 Through 22-09-2016",

url = "http://2016.ieee-rfid-ta.org/",

}

Huiting, J, Kokkeler, ABJ & Smit, GJM 2016, The effects of single bit quantization on direction of arrival estimation of UHF RFID tags. in 2016 IEEE International Conference on RFID Technology and Applications (RFID-TA). IEEE, Piscataway, NJ, pp. 55-60, 2016 IEEE International Conference on RFID Technology and Application, RFID-TA 2016, Shunde, China, 21/09/16. https://doi.org/10.1109/RFID-TA.2016.7750731

The effects of single bit quantization on direction of arrival estimation of UHF RFID tags. / Huiting, Jordy; Kokkeler, André B.J.; Smit, Gerard J.M.
2016 IEEE International Conference on RFID Technology and Applications (RFID-TA). Piscataway, NJ: IEEE, 2016. p. 55-60.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - The effects of single bit quantization on direction of arrival estimation of UHF RFID tags

AU - Huiting, Jordy

AU - Kokkeler, André B.J.

AU - Smit, Gerard J.M.

PY - 2016/9/21

Y1 - 2016/9/21

N2 - Phased arrays can be used to estimate the direction-of-arrival (DOA) of UHF RFID tags. To save on energy consumption and hardware costs, in this paper we explore the possibility of using single bit analog-to-digital converters for our phased array setup. This setup consists of an off-the-shelf Impinj R2000 reader and a custom phased array with 4 receiving channels. The proposed system quantizes the baseband quadrature signals individually. As there is a direct relation between the correlation coefficient of a quantized signal and an unquantized signal, the error introduced by quantization can be corrected. The experimental results show that single bit quantization can be used for DOA estimation and the mean error increases only slightly. The proposed correction achieves better results than uncorrected quantized estimation, at the cost of the need for signal power measurements.

AB - Phased arrays can be used to estimate the direction-of-arrival (DOA) of UHF RFID tags. To save on energy consumption and hardware costs, in this paper we explore the possibility of using single bit analog-to-digital converters for our phased array setup. This setup consists of an off-the-shelf Impinj R2000 reader and a custom phased array with 4 receiving channels. The proposed system quantizes the baseband quadrature signals individually. As there is a direct relation between the correlation coefficient of a quantized signal and an unquantized signal, the error introduced by quantization can be corrected. The experimental results show that single bit quantization can be used for DOA estimation and the mean error increases only slightly. The proposed correction achieves better results than uncorrected quantized estimation, at the cost of the need for signal power measurements.

KW - Phased array

KW - MUSIC

KW - Quantization

KW - UHF RFID

U2 - 10.1109/RFID-TA.2016.7750731

DO - 10.1109/RFID-TA.2016.7750731

M3 - Conference contribution

SN - 978-1-5090-1409-5

SP - 55

EP - 60

BT - 2016 IEEE International Conference on RFID Technology and Applications (RFID-TA)

PB - IEEE

CY - Piscataway, NJ

T2 - 2016 IEEE International Conference on RFID Technology and Application, RFID-TA 2016

Y2 - 21 September 2016 through 22 September 2016

ER -

The effects of single bit quantization on direction of arrival estimation of UHF RFID tags

Abstract

Conference

Keywords

Access to Document

Fingerprint

Cite this