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Study on Digital Baseband of RFID System Based on ARM

Author: SunYao
Tutor: YuYing
School: Nanjing University of Posts and Telecommunications
Course: Electromagnetic Field and Microwave Technology
Keywords: RFID ISO-IEC CD 18000-6C _ standard digital baseband reader KMP algorithm
CLC: TP391.44
Type: Master's thesis
Year: 2012
Downloads: 26
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Abstract


With the advent of radio technology and large scale integrated circuit of universal application,the radio frequency identification (RFID) technology produced. It is a kind of advanced automaticidentification and data capture techniques. In recent years, radio frequency identificationtechnology became more and more applied in many fields. It is improved the people’s life level,raised the economic benefits of the enterprise, strengthen the social public security and improvedthe social industrialization and the level of information exerted an enormous influence.This thesis combined RFID reader and the part of tag digital baseband’s system architecture,compiled on the basis of the theory, technology of decoding methods, anti-collision algorithm forradio frequency identification reader and tag digital baseband part of the study, completed designof the system and modular based on the key technologies of the ISO the-IEC_ CD 18000-6Cstandard RFID reader digital baseband system.The main contents as follows: first of all, we need to understand and master the ISO-IEC CD18000-6C_standard, only by mastering the key information of the ISO-IEC CD 18000-6C _standard, for example, the output waveform coding, the input waveform coding, the rate of theoutput waveform, the rate of the input waveform, the synchronization problem (guidance codeand frame synchronization ), communication between label and Read and the selection of checkcode, can we be good to continue to the next step of work. Secondly, we should be familiar withthe RFID digital baseband system, and should divide the whole system module. To eat the wholebread at once is Impossible, do it step by step is the key. The whole system consists of threemodules: transmitting module, receiving module, control module. Finally, on the basis of theLinux operating system, we achieved the function of each module with the use of ARM Edition(S3C2440).The function of each module: 1 timing mechanism solution; 2 output waveformcontrol ( sending code); 3 input waveform control ( receiving waveform ); 4 received waveformdecoder ( using the KMP algorithm to decode). Then crawled and verified the waveform of sentand received.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Optical pattern recognition devices
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