字模转换原理，浅显易懂，适合初学者。附有代码-Font conversion principle, easy to understand for beginners. With code

对采用双二进制信号脉冲的2电平PAM通信系统进行Monte Carlo仿真。输入二进制序列为{bn},预编码序列为{dn},幅度序列为｛an},相关序列为{cn}。将高斯噪声加到接收序列{bk}上去以形成检验信号的输入，并恢复这个数据。对1万个比特执行这个仿真，并在σ2=0.1,0.5,1时分别测量比特差错概率。用此概率跟无ISI的PAM的BER曲线作对比并进行分析。-Partial-Responsing Signal。

Fig. 2 shows the conventional ESD protection design with dual diodes (DPand DN) at RF I/O pad and the power-rail ESD clamp circuit between VDDand VSS[3]. Under positive-to-VDD (PD) or negative-to-VS