光通信系统的光调制解调技术与信号处理研究

摘要

本论文着重讨论了光调制和解调的原理,并对其进行了分析。首先,本文简要地介绍了光通信的发展过程、组成及工作原理。接着,对光学调制、解调的技术进行了较为详尽的论述,并对其原理进行了分类。在此基础上,对差分相移键控调制,载波抑制正交调幅,同步检测等技术进行了详细的研究。最后,对全文进行了概括,并指出了本论文的研究意义。本项目的研究成果将为光纤通信系统的设计与实现提供一定的理论依据与技术支持,对提升光通信系统的整体性能、降低系统成本有着重要的现实意义。

关键词:光通讯系统,光调制,解调,信号处理,差分相移键控调制技术

Abstract


In this paper, the application of optical modulation and demodulation techniques in optical communication system is discussed. First of all, the paper gives a brief introduction to optical communication system, including its development history, components and fundamental principles. Then, the technique of optical modulation and demodulation and the classification of its principle are discussed in detail, with particular emphasis on the technique of electric guitar effect. Then, the paper analyses the problems in the signal processing of the optical communication system, and puts forward the concrete application of DPSK, OFDM and synchronization. At last, the main contents of this paper and its significance are summarized. In this paper, the related technology and instruction are provided for the design and realization of optical communication system, and it is significant to improve the performance and cost of optical communication system.

Key Words: Optical Communication System, Optical Modulation and Demodulation Technology, Signal Processing, DPSK Modulation

目录


摘要 1
Abstract 1
1引言 2
2光通讯技术综述 2
2.1光通讯技术的发展史 2
2.2光通讯技术的构成及工作原理 2
3光调变与解调 3
3.1光调-解调的基本理论和类型 3
3.2电吉它效应的光学调制工艺 3
4光通讯系统中信号处理方面的若干问题 3
4.1信噪比与信噪比 3
4.2相移 3
4.3非线性畸变(non-linear distortion) 4
5应用光调解调技术求解信号处理难题的一种特别方法 4
5.1差分相移键控调制 4
5.2载波正交调幅技术 5
5.3同步探测 5
6结论 5
参考文献 6


 
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