Conference contribution
(Conference Contribution)


A study of software defined radio receivers for passive RFID systems


Publication Details
Author(s): Elsaid Ibrahim H, Kenawy H, Robert J, Heuberger A
Publisher: VDE Verlag GmbH
Publication year: 2014
ISBN: 9783800736263
Event: 2014 European Conference on Smart Objects, Systems and Technologies, Smart SysTech 2014
Language: English

Abstract

In this paper, a Software Defined Radio (SDR) receiver structure suitable for readers using passive Radio Frequency IDentification (RFID) is presented. In such a passive RFID configuration, the undesirable DC-offset phenomenon may appear in the baseband of the reader receiver. This phenomenon can severely degrade the performance of the extraction of valid information from a received signal in the reader receiver. To mitigate this DC-offset phenomenon, a software receiver structure is proposed to remove the DC-offset in the digital domain. This aim can be e.g. achieved by using three methods: 1) Removing the DC offset using a Hamming windowing FIR high pass filter. 2) Extracting useful transition information from the corrupted signal using an edge detector. 3) Using a first order Butterworth IIR notch filter to remove the unwanted DC offset. A comparison between these methods based on measurements is presented to analyze the advantages and disadvantages of the different approaches.



How to cite
APA: Elsaid Ibrahim, H., Kenawy, H., Robert, J., & Heuberger, A. (2014). A study of software defined radio receivers for passive RFID systems. VDE Verlag GmbH.

MLA: Elsaid Ibrahim, Hazem, et al. "A study of software defined radio receivers for passive RFID systems." Proceedings of the 2014 European Conference on Smart Objects, Systems and Technologies, Smart SysTech 2014 VDE Verlag GmbH, 2014.

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