本文给出一个能产生多种时变信号的简便方法,它利用模数变换(ADC)集成电路将各种形状的模拟信号转换成数字信号,在数字比较器中与由m序列发生器产生的均匀分布伪随机数进行比较,用数字比较器所产生的高电平去选通(伪)随机信号,从而获得各种形状的(伪)随机时变信号。文中给出了指数、线性、猝发及正弦形的时变信号。 This article presents a simple and easy way to generate a variety of time-varying signals by using an analog-to-digital converter (ADC) integrated circuit to convert various shapes of analog signals into digital signals, in digital comparators, with m sequence generators Uniformly distributed pseudo-random numbers are compared, and high-level generated by the digital comparator is used to gobble (pseudo) random signals to obtain (pseudo) random time-varying signals of various shapes. The paper gives the index, linear, burst and sinusoidal time-varying signal.