序列检测器可用于检测一组或多组由二进制码组成的脉冲序列信号，当序列检测器连续收到一组串行二进制码后，如果这组码与检测器中预先设置的码相同，则输出1，否则输出0。由于这种检测的关键在于正确码的收到必须是连续的，这就要求检测器必须记住前一次的正确码及正确序列，直到在连续的检测中所收到的每一位码都与预置数的对应码相同。在检测过程中，任何一位不相等都将回到初始状态重新开始检测。

状态机的工作方式就是根据控制信号按照预先设定的状态进行顺序运行。本实验就是要求当检测器收到一组二进制码后，如果这组码与检测器中预先设置的码相同，则输出1，否则输出0。恰好我们可以用状态机来控制。-Sequence detector can be used to detect one or more sets of binary code pulse train signal sequence detector for receipt of a serial binary code, the same pre-set code in the code and detector, output 1, otherwise output 0. The key to this detection is that the correct code must be received is continuous, which requires the detector must remember the time before the correct code and the correct sequence, until every one yards received continuous detection and preset number of the corresponding code is the same. The detection process, any one does not equal will return to the initial state to begin testing. The work of the state machine is run under the control signal in accordance with the state of pre-set order. This experiment is to ask when the detector receives a set of binary code, if the same pre-set code in the code and detector, the output 1, otherwise output 0. Exactly we can use the state machine to control.