设计一个简易数字信号ASK调制系统。系统数字基带信号V1为m序列伪随机信号，载波信号V2为正弦波周期信号，V3为V1经二进制幅移键控调制后的输出。系统输入为CLOCK和RESET信号，CLOCK是系统时钟信号，上升沿触发。RESET为系统异步复位信号，高有效。(A simple digital signal ASK modulation system is designed. The system digital baseband si