基于CPLD的语音通信系统设计与实现毕业设计 原版包括程序源码，各部分仿真图，框图-CPLD-based voice communications system design and implementation of the design of the original graduate program, including source code, the part of simulation diagram, block diagram

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通信领域里的产生随机PN序列，QPSK调制解调的VHDL代码，适合通信领域的人士使用-Communication in the field of random PN sequence, QPSK modulation and demodulation of the VHDL code, those suitable for use in the field of communications