一、引言序列网络的功能是产生二进制序列或检测二进制序列。传统的序列网络基本上是由移位寄存器、解码或编码逻辑电路以及产生移位脉冲的时钟发生器所组成。此外,还必须设计一个逻辑电路来置初始状态,其结构框图如图1所示。图1a 是一个对给定的二进制序列进行解码的序列滤波器;图1b 是一个根据输入函 I. INTRODUCTION The function of a sequence network is to generate a binary sequence or to detect a binary sequence. The traditional sequence network is basically composed of a shift register, a decoding or encoding logic, and a clock generator that generates shift pulses. In addition, you must also design a logic circuit to set the initial state, the block diagram shown in Figure 1. Figure 1a is a sequence filter for decoding a given binary sequence; Figure 1b is a sequence filter based on an input letter