Performance Evaluation and Verification of Spread-Spectrum Based UHF RFID Ranging

被引：0

作者：

Galler, F. ^{[1
]}

Hinteregger, S. ^{[2
]}

Faseth, T. ^{[3
]}

Leder, N. ^{[1
]}

Witrisal, K. ^{[2
]}

Magerl, G. ^{[1
]}

Arthaber, H. ^{[1
]}

机构：

[1] TU Wien, Inst Electrodynam Microwave & Circuit Engn, Vienna, Austria

[2] Graz Univ Technol, Signal Proc & Speech Commun Lab, Graz, Austria

[3] Johannes Kepler Univ Linz, Inst Integrated Circuits, Linz, Austria

来源：

2017 IEEE INTERNATIONAL CONFERENCE ON RFID (RFID) | 2017年

关键词：

Distance measurement; localization; Radio-Frequency Identification (RFID); ranging; Software Defined Radio (SDR); spread spectrum;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents measurement results of a recently introduced time of flight (ToF) ranging method for backscattering RFID tags. The measurements are done with off-the-shelf EPC Class1 Gen2 tags, an automated tag positioner, a modified software defined radio (SDR) platform as the RFID reader, and a PC post-processing the ranging results. The ranging error and its variance is measured and discussed at tag distances of 0.1-4m for different tags, operating frequencies, and ranging signal power levels. The underlying ranging principle is successfully verified, and its practical performance limitations due to multipath propagation is shown. Furthermore, the paper shows that by a smart choice of the localization sequence, measurement errors stemming from nonlinear distortion of the power amplifier can be reduced.

引用

页数：6

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