关键词:无线射频识别; 软件无线电; LabVIEW; 调制识别
Research of test methods for RFID signal modulation types based on software radio and LabVIEW environment
HU Li, HE Yi-gang, ZUO Lei
(College of Electrical & Information Engineering, Hunan University, Changsha 410082, China)
Abstract:Testing technology for RFID has become the significant guarantee for further development of RFID technique.This paper proposed a new testing methodology based on software radio for RFID signal modulation which, by means of 4 characteristic parameters and LabVIEW environment, could make identification among 5 modulation types, including 2ASK, 4ASK, 2FSK, 4FSK and BPSK effectively. Discussed the design procedure and presented simulation results. The results of simulation show that this method can obtain a significant recognition effect and a fine realtime performance even with a low SNR. ......