Sistema de identificação por radiofrequência sem chip em rádio definido por software.

Abstract

This report is the result of a Senior Design Project developed at Electrical Engineering Department of Federal University of Campina Grande (UFCG). It was developed in order to implement a reader to a Radio Frequency Identification System that detects passive tags through an anti-collision technique, implemented together with other two works. Generation of chirp signals was performed using a signal generator and a Voltage Controller Oscillator (VCO). Transmission and reception of these signals were performed at 1 GHz through a Software Defined Radio implemented via open source software GNU Radio and USRP (Universal Software Radio Peripheral). Although the communication between receptor and transmission was done successfully, limitations in the software platform used were detected.