Shaping circuits include signal linear amplifier circuit, pole-zero cancellation circuit, programmable amplifier, active integral filter circuit, baseline recovery circuit, and pulse amplitude discriminator circuit. 信号调理电路包括:信号线性放大电路、极零相消电路、程控放大电路、有源积分滤波器电路、基线恢复电路和脉冲幅度甄别电路。