Demo Speed通信协议MATLAB实现。基于动态帧时隙ALOHA(DFSA)协议与正交可变扩频因子码(OVSF)作为扩频码的码分多址技术相结合的超高频RFID系统-Demo Speed ​ ​ Communication Protocol MATLAB. (DFSA) agreement with orthogonal variable spreading factor code (OVSF) UHF RFID system based on dynamic frame