一种m序列信号产生实验设计  

An Experimental Design of m Sequence Signal Generation

作　　者：刘恒[1] 黄晓钰 孙晋 刘建成[1] LIU Heng;HUANG Xiaoyu;SUN Jin;LIU Jiancheng(College of Electronic&Information Engineering,Nanjing University of Information&Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学电子与信息学院

出　　处：《实验科学与技术》2020年第1期63-68,共6页Experiment Science and Technology

基　　金：江苏高校品牌专业建设工程资助项目(PPZY2015B134);教育部产学合作协同育人项目(201701056050,201702109020,201702018120)

摘　　要：该文针对电子设计自动化课程授课中存在的软件平台使用讲授枯燥,缺乏综合性系统教学项目案例,电子辅助设计(EDA)和虚拟仿真与硬件实现有一定脱节等问题,以m序列信号发生器设计为综合案例,分析和推导了多阶m序列信号的特性,并通过555定时器、双D触发器、逻辑门电路、运算放大器电路构成了序列信号发生器电路。以6阶m序列为实例,通过Multisim软件仿真确定了中间每个环节的输出波形,并利用Altitum Designer软件辅助设计了PCB,实验测试结果和仿真完全一致,印证了设计的正确性,并针对调试中存在的问题作了相关说明。通过综合性教学实验,学生能更好地掌握EDA软件使用和硬件装配、调试及测试,提高电子技术综合技能。The following problems exist in the course of electronic design automation courses,for example,the use of software platform is boring,lack of comprehensive system teaching project cases,electronically aided design(EDA)and virtual simulation and hardware implementation have some disconnected issues.Taking the design of M-sequence signal generator as a comprehensive case,this paper analyzes and deduces the characteristics of multi-order m-sequence signals,and forms a sequence signal generator circuit through 555 timer,double-D flip-flop,logic gate circuit and operational amplifier circuit.Taking the 6th order m sequence as an example,the output waveform of each link is determined by Multisim software simulation,and the PCB is designed assisted by the software Alttitum Designer.The experimental test results are completely consistent with the simulation,which confirms the correctness of the design and gives relative explanation aiming at problems during debugging.Through comprehensive teaching experiments,students can better master the use of EDA software and hardware assembly,debugging and testing,and improve the comprehensive skills of electronic technology.

关 键 词：电子设计自动化 仿真 实验 M序列 

分 类 号：TN911.71[电子电信—通信与信息系统]