数字通信系统的仿真，包括调制解调，上下变频，加入了高斯白噪声，并且每个步骤都生成相应的图形-Digital communication system simulation, including the modulation and demodulation, the upper and lower frequency, by adding Gaussian white noise, and each step generates the appropriate graphics

LCD控制、FSK PSK等调制解调、出租车计价器、电梯控制、步进电机控制、自动售货机的VHDL程序-The control of LCD and ASK FSK make the demodulation, baseband code occurrence machine, frequency meter, electronic organ and electric lift control, automat and rent a car to account VHDL procedure c