Improved Detection Scheme for Chipless RFIDs Using Prolate Spheroidal Wave Function-Based Noise Filtering

被引：4

作者：

Dullaert, Wouter ^{[1
]}

Reichardt, Lars ^{[2
]}

Rogier, Hendrik ^{[1
]}

机构：

[1] Univ Ghent, B-9000 Ghent, Belgium

[2] Karlsruhe Inst Technol, Inst Hochfrequenztech & Elekt, D-76187 Karlsruhe, Germany

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2011年 / 10卷

关键词：

Prolate spheroidal wave function (PSWF); radio frequency identification (RFID); ultrawideband (UWB);

D O I：

10.1109/LAWP.2011.2155023

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：

A novel, highly sensitive scheme to detect the resonance peaks in the spectrum of chipless RFID signals is presented. The detection is based on finding the zeros in the derivative of the group delay of the received signal. In order to be able to accurately detect these zeros in the presence of noise, the received signal is filtered using a prolate spheroidal wave function-based model. This allows great increases in the distance at which chipless RFIDs can be accurately read. The detection method can be used standalone or in addition to traditional amplitude-based detection schemes.

引用

页码：472 / 475

页数：4

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