【摘要】 根据数字信号FSK调制和解调的工作原理,采用层次化、模块化方法设计了一种基于FPGA芯片的FSK调制解调器;用数字键控法实现了调制,用过零检测法实现了全数字解调。同时结合系统功能实现的需要,设计了伪随机序列(m序列)模块。整个设计基于ALTERA公司的QuartusⅡ开发平台,并用Cyclone系列FPGA实现。所设计的调制解调器具有体积小、功耗低、集成度高、软件可移植性强、扰干扰能力强的特点,符合未来通信技术设计的方向。更多还原

【Abstract】 To design a FSK modem based on FPGA adopting the method of hiberarchy and module on the grounds of the principle of digital signal FSK modulation and demodulation;at the same time design pseudo-random sequence module corresponding with the system performance.The whole design is implemented on FPGA based on the development platform of ALTERA Quartus Ⅱ.The designed modem has the characteristics of small size,low consume,high integration,strong soft replant and high anti-interference,it is accordance with the direction of future communication technology design.更多还原