电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2012年
22期
47-51
,共5页
无线收发%FPGA%数字中频%直接数字频率合成%数字下变频
無線收髮%FPGA%數字中頻%直接數字頻率閤成%數字下變頻
무선수발%FPGA%수자중빈%직접수자빈솔합성%수자하변빈
wireless transceiver%FPGA%digital intermediate frequency%DDS%digital downcovert
介绍了无线收发系统的设计过程，该系统以FPGA作为数字中频处理部分，发射机采用FM调制对信号进行处理．接收机采用数字下变频与欠采样技术，将中频信号降采样后解调，得到原信号。系统采用分模块式设计，对电路各个模块的功能和实现加以说明，设计思路灵活，结构清晰。电路在Prote199中设计完成，并用VerilogHDL语言对数字中频进行编程和程序仿真。系统已经做成实体，可以实现信号的无线发射与接收，达到设计提出的要求。
介紹瞭無線收髮繫統的設計過程，該繫統以FPGA作為數字中頻處理部分，髮射機採用FM調製對信號進行處理．接收機採用數字下變頻與欠採樣技術，將中頻信號降採樣後解調，得到原信號。繫統採用分模塊式設計，對電路各箇模塊的功能和實現加以說明，設計思路靈活，結構清晰。電路在Prote199中設計完成，併用VerilogHDL語言對數字中頻進行編程和程序倣真。繫統已經做成實體，可以實現信號的無線髮射與接收，達到設計提齣的要求。
개소료무선수발계통적설계과정，해계통이FPGA작위수자중빈처리부분，발사궤채용FM조제대신호진행처리．접수궤채용수자하변빈여흠채양기술，장중빈신호강채양후해조，득도원신호。계통채용분모괴식설계，대전로각개모괴적공능화실현가이설명，설계사로령활，결구청석。전로재Prote199중설계완성，병용VerilogHDL어언대수자중빈진행편정화정서방진。계통이경주성실체，가이실현신호적무선발사여접수，체도설계제출적요구。
The wireless transceiver system design process is introduced.The system is used digital intermediate frequency technology in FPGA, the transmitter adopts FM modulation to deal with signal while the receiver use the DDC and the undersampling technique to sample and demodulation the IF signal for restore the original signal. The system is designed by building blocks,the function and the realization of each module circuit have been stated,making it flexible and structuring to realize.The circuit is designed and finished in Prote199,which also has been programmed and simulated with digital intermediate frequency by VerilogHDL.The system has been realized and can send or receive signal successfully.Proved to meet requirements raised by designer.
