中文摘要：

介绍了一个用于空间高能粒子探测的多道脉高分析器电路的设计。该分析器通过模数转换器把输入信号数字化，再利用查找表来完成能段甄别工作。能档计数和数据传输由80C31单片机控制.该电路能精确地对辐射脉冲进行幅度甄别，并给出入射粒子的能档，而且系统可靠性高，易于校准和标定。

英文摘要：

It demonstrates a circuit of the multichannel pulse height analyzer used for the energetic particle detection in space--based instruments. The analyzer digitizes the input signal by an analog-to-digital converter （ADC）, then adopts a look--up table to discriminate the energy range of the incident particles. A 80C31 data process unit counts the discrimination pulses and delivers the data to the external device. The circuit performs energy discrimination precisely. It is highly reliable and convenient to calibrate.