最新DSB系统设计与仿真.doc

本 科 生 毕 业 设 计
论文题目
：
DSB模拟系统的设计与仿真
姓名
：
郭 群
学号
：
1020420220
班级
：
10204201班
年级
：
2022级
专业
：
通
东华理工大学毕业论文 ABSTRCT
ABSTRACT
The analog communication system has lots of advantages such as intuitive, easy to realize and it has been widely used in the communication system in the early, for instance the telephone system early is an complete analog communication system. The double sideband suppressed carrier amplitude modulation (DSB-SC) is one of the most classic analog communication has the advantages of high modulation efficiency, good anti-noise performance, and has been get the extensive research and application. MATLAB simulation software has high programming efficiency, convenient and widely used in electronic communications, aerospace and other fields of science, and SIMUINK as the simulation tool, has the characteristics of visual intuition and convenience. This simulation is based on this two kinds of simulation platform for DSB communication system .In this simulation modeling of a system we need to master the principle part, the objective to learn in order to practice in the modeling process, so the simulation modeling act as a positive role in teaching and research.
This design based on the principle of a brief overview of the DSB communication system, establishes the simulation modeling based on MATLAB and SIMULINK, including modulation, and demodulation of the simulation modeling channel. Make the sine wave signals as the baseband signals in this communication system, the additive Gauss white noise channel by hamming low pass filter and coherent demodulation method be demodulated of all we make the entirety simulation based on SIMULINK,and then design each part based on MATLAB. In the analysis of simulation data we can obtained the results consistent with the theoretical analy