基于单片机的激光通信仪毕业论文11.doc

最新精品文档，知识共享！ PAGE 最新精品文档，知识共享！ 本科毕业论文 （2013届） 题 目 基于单片机的激光通信仪 学 院 专 业 光信息科学与技术 班 级 学 号 学生姓名 指导教师 完成日期 2013年5月 最新精品文档，知识共享！ 摘 要 无线激光通信比起传统无线电通信有许多优势，尤其是在高数据速率。随着信息时代不断发展，只靠电信号传输数据已经满足不了人类日益剧增的需求，而光通信更大程度上能实现要求，比如光纤到户等等。本论文主要对单片机激光通信系统的原理，单片机的应用等进行了分析；对AD转换，串口通信，激光收发器，LED灯送显，硬件制作和软件设计进行分析；对系统进行误差分析。 经过实验的证明，本论文设计的系统软件和硬件设计的很合理、实时性很好，抗干扰的能力强。实验误差的显示表明，本设计在进行短距离的测量时误差比较小，所以可以应用在简单的数据传送等方面。 关键词：PIC16F877A；激光；通信；LED显示；AD转换 ABSTRACT Wireless laser communication has many advantages over traditional radio communication especially in high data rate.With the faster and fater development of the information age,the electrical pulse signal transmission data can not meet the demand of the growing surge of mankind.In greater degree,optical communication can realize the requirements,such as fiber to the home,and so on.The laser transceiver,ADC,master synchronous serial port,LED data show the principle of wireless laser communication system.The hardware,software design and production were discussed. The research has led to the discovery that the software and hardware designing is justified,the anti-disturbance competence is powerful and the real-time capability is satis- factory.Experiments show that this error display design in short distance measurement error is less,so it can be used in a simple data transter. Keywords: PIC16F877A; Laser;Synchronous serial port; LED display； TOC \o 1-2 \h \z \u HYPERLINK \l _Toc356649818 1. 绪 论 PAGEREF _Toc356649818 \h 1 HYPERLINK \l _Toc356649819 1.1课题背景 PAGEREF _Toc356649819 \h 1 HYPERLINK \l _Toc356649820 1.2 激光通信的特点优势，与应用 PAGEREF _Toc356649820 \h 1 HYPERLINK \l _Toc356649821 1.3国内外激光通信的现状 PAGEREF _Toc356649821 \h 2 HYPERLINK \l _Toc356649822 2.激光通信系统分析 PAGEREF _Toc356649822 \h 3 HYPERLINK \l _Toc356649823 2.1 激光通信系统原理 PAGEREF _Toc356649823 \h 3 HYPERLINK \l _Toc356649824 2.1.1 激光传输 PAGEREF _Toc356649824 \h 3 HYPERLINK \l _Toc356649828 2.1.2 激光器 PAGEREF _Toc356649828 \h 4 HYPERLINK \l _Toc3566498