摘要
在分析四进制差分相移键控(QDPSK)原理的基础上,提出了QDPSK调制系统的自顶向下的模块化设计方法和设计模型,并在LabVIEW8.5软件平台上进行了实验仿真。在仿真过程中,分别进行了QDPSK调制系统的各个子模块模型设计和参数设置,各调制与解调子模块之间可以互相调用,构成了通信软件包,有一定的通用性。仿真结果表明,QDPSK调制系统的模块化设计方法对于研究通信系统的特性是方便有效的,可应用于工程设计和科研实验中。
Based on analyzing the modulation and demodulation principle for QDPSK signal,a modulation solution for QDPSK signal that from top to bottom based on Labview is proposed.In the simulating process,the system is combined of many modules,every modulation and demodulation submodules can be called each other,and all of them form the communication software package.Through the simulation results,it is a convenient and effective method that QDPSK system is designed by module diagram to study the characteristics of communication system,and can be applied to engineering design and science lab.
出处
《电测与仪表》
北大核心
2010年第12期57-60,共4页
Electrical Measurement & Instrumentation
