【正文】 本科畢業(yè) 論文 （ 2021 屆） 題 目 基于單片機的 激光通信儀 學(xué) 院 理學(xué)院 專 業(yè) 光信息科學(xué)與技術(shù) 班 級 09075311 學(xué) 號 09075335 學(xué)生姓名 沈繼宏 指導(dǎo)教師 蔡本曉 完成日期 2021年 5月 杭州電子科技大學(xué)本科畢業(yè)論文 摘 要 無線激光通信比起傳統(tǒng)無線電通信有許多優(yōu)勢，尤其是在高數(shù)據(jù)速率。隨著信息時代不斷發(fā)展，只靠電信號傳輸數(shù)據(jù)已經(jīng)滿足不了人類日益劇增的需求，而光通信更大程度上能實現(xiàn)要求，比如光纖到戶等等。本論文主要對單片機激光通信系統(tǒng)的原理，單片 機的應(yīng)用等進行了分析；對 AD 轉(zhuǎn)換，串口通信，激光收發(fā)器， LED 燈送顯，硬件制作和軟件設(shè)計進行分析；對系統(tǒng)進行誤差分析。 經(jīng)過實驗的證明，本論文設(shè)計的系統(tǒng)軟件和硬件設(shè)計的很合理、實時性很好，抗干擾的能力強。實驗誤差的顯示表明，本設(shè)計在進行短距離的測量時誤差比較小，所以可以應(yīng)用在簡單的數(shù)據(jù)傳送等方面。 關(guān)鍵詞： PIC16F877A；激光；通信； LED 顯示； AD 轉(zhuǎn)換 杭州電子科技大學(xué)本科畢業(yè)論文 ABSTRACT Wireless laser munication has many advantages over traditional radio munication especially in high data 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 greater degree,optical munication can realize the requirements,such as fiber to the home,and so laser transceiver,ADC,master synchronous serial port,LED data show the principle of wireless laser munication hardware,software design and production were discussed. The research has led to the discovery that the software and hardware designing is justified,the antidisturbance petence is powerful and the realtime capability is satis 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； AD conversion 杭州電子科技大學(xué)本科畢業(yè)論文 1. 緒 論 .........................................................................................................................................................1 ...................................................................................................................................................1 激光通信的特點優(yōu)勢，與應(yīng)用 .............................................................................................................1 ..........................................................................................................................2 ..........................................................................................................................................3 激光通信系統(tǒng)原理 ..................................................................................................................................3 激光傳輸 ...............................................................................................................................................3 激光器 ...................................................................................................................................................4 調(diào)制與解調(diào)器 .......................................................................................................................................4 光接收系統(tǒng) ............................................................................................................................................5 大氣傳輸技術(shù) .......................................................................................................................................5 .....................................................................................................................6 統(tǒng)的國內(nèi)外研究現(xiàn)狀 ..........................................................................................................6 控制方法的確定 ......................................................................................................................................6 可靠性設(shè)計 ..............................................................................................................................................9 4. 激光通信控制電路的設(shè)計 ........................................................................................................................ 11 芯片的選擇 ............................................................................................................................................11 ....................................................................................................................... 12 ............................................................................................................................... 12 ................................................................................................................... 13 ............................................................................................................................... 15 ................................................................................................................................... 15 主程序設(shè)計 ........................................................................................................................................... 16 數(shù)據(jù)采集和處理程序設(shè)計 ............