基于QPSK调制的扩频通信系统FPGA实现

The Design of Spread Spectrum Communication Based On QPSK Modulation By FPGA

本论文主要讨论和实现了基于FPGA的扩频通信信号的基带处理。用Altera公司的FPGA开发平台QuartusII4.1实现了一个基带扩频通信系统。并对系统中的每个模块和整个系统进行相应的功能仿真和时序时延仿真。结果表明整个系统可以正常工作,QPSK调制的初相可调,系统最高工作频率可以达到73M。

this thesis primarily discusses the baseband processing of SS communication signal based field programmable gate array （FPGA） chip. the SS baseband communication subsystem has been designed and implemented based on the FPGA development platform QuartusII 4.1. Achieve behavior simulation and post-placeroute simulation respectively on the platform of Quartus Ⅱ . And the result suggests that this SS system can work well and the initial phase of QPSK modulation can be set. This system ＇s highest working frequency can reach up to 73M.