2DPSK传输系统及仿真

2DPSK 传输系统与仿真摘 要现代的通信技术不断发展，数字信号因其抗噪声性能好，误码率低等优点，成为了当今通信传输数据的主流。2DPSK 简称为二进制差分相移键控，它可以有效的避免“反向工作”现象，在高速数据传输中有着广泛的应用。本文介绍了 2DPSK 调制和解调的基本原理，给出系统原理框图并在 Multisim10 平台上搭建仿真模型并对仿真结果进行波形分析，我详细说明了与二进制绝对相移键控（2PSK）两种调制方法相比之下2DPSK 的优点，以及在未来如何对 2DPSK 改进得到更优的调制方法提出思路。在Multisim 中有许多设备和芯片等元器件可以帮助我们搭建电路和仿真模型，是一种集成性高的仿真软件，适宜电子类和通信专业的教学，可以帮助于我们理解系统中各个设备的功能以及达成符合要求的仿真效果。关键词：Multisim 仿真；2DPSK 调制；差分相移键控；波形分析Simulation and transmission system of the 2DPSK modulationAbstractWith the continuous development of modern communication technology, digital signal has become the mainstream of data transmission because of its good anti-noise performance and low bit error rate. 2DPSK, referred to as binary differential phase shift keying, which can effectively avoid the phenomenon of “reverse work” and is widely used in high-speed data transmission. This paper introduces the basic principle of 2DPSK system modulation and demodulation, gives the system principle block diagram and builds the simulation model on the Multisim10 platform, puts forward the waveform analysis of the simulation result. I will detail comparing with binary absolute phase shift keying (2PSK), what advantage does 2DPSK have. I give a full account of how to develop 2DPSK to get some better modulation in the future. There are so many devices in Multisim, chips and other components that can help us build circuit and simulation model. It is a kind of simulation software with high integration. It’s suitable for the teaching of electronics...