The first，this paper investigates the f．0rward link and retum link data encodlng method in short range communication types A and B in ISO／IEC 1 8000-6，and deeply analyzes encoding method and technical parameters of Bi—Phase Space(FMO)coding， Pulse IntervaI Encoding(PIE)coding and Manchester coding．We also designed and simulated code circuits and decode circuits of the three encoding method by FPGA experiment platfoml． The second， We discussed the technical principle of error control of the UHF RFID system，especially for the techn0109y of data Verification 肌d calibration，namely cyclic redundancy check that used in IS0／IEC 1 8000·6·The circuits of CRC based on Linear Feedback Shin Register(LSFR)are analyzed行om theonr and realization，and some means of solVing problems are put fon)Irard，then an improved LSFR circuit to implement CRC is designed．For some require fast CRC calculation system，we designed a noVel parallel CRC circuit by using recurslVe fomlula．In the end，we put forw

超高频RFID系统编解码与校验问题的研究.pdf

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