Digital communication for HF

短波信道的多径问题仿真，可帮助读者解决短波信道信号的通信仿真问题-HF channel simulation of the multi-path issues to help readers solve the short-wave communications channel signal simulation

c# windows平台 RFID 读写卡器在电脑上的读写卡片(C# windows platform RFID read / write card reader and write card on the computer)