單工無線呼叫系統(tǒng)_第1頁
已閱讀1頁，還剩69頁未讀， 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡介

1、貴州大學(xué)本科畢業(yè)論文（設(shè)計(jì)）第I頁目錄摘要..........................................................................................................................................II前言.........................................................

2、....................................................................................11系統(tǒng)設(shè)計(jì).................................................................................................................................2

3、1.1設(shè)計(jì)要求......................................................................................................................21.2總體設(shè)計(jì)方案.....................................................................................

4、.........................32單元硬件電路設(shè)計(jì)...............................................................................................................132.1發(fā)射部分電路的設(shè)計(jì)............................................................

5、..................................132.2接收部分電路的設(shè)計(jì)................................................................................................202.3PT22622272編碼解碼電路設(shè)計(jì).....................................................

6、....................262.4抗干擾措施..............................................................................................................282.520dB衰減器的制作.................................................................

7、................................293軟件設(shè)計(jì)...............................................................................................................................303.1軟件設(shè)計(jì)和硬件設(shè)計(jì)的關(guān)系.....................................

8、...............................................303.2發(fā)射部分程序設(shè)計(jì)....................................................................................................303.3接收部分程序設(shè)計(jì)...............................................

9、.....................................................314系統(tǒng)測(cè)試...............................................................................................................................324.1測(cè)試使用的儀器.....................

10、...................................................................................324.2指標(biāo)測(cè)試和測(cè)試結(jié)果................................................................................................324.3波形觀察及距離測(cè)量.............

11、...................................................................................384.4結(jié)果分析....................................................................................................................39結(jié)束語.......

12、................................................................................................................................40參考文獻(xiàn)......................................................................................

13、.............................................42致謝...........................................................................................................................................43附錄1使用說明.......................

14、...............................................................................................44附錄2主要元器件清單...........................................................................................................45附錄3電

15、路原理圖及印制板圖...............................................................................................46附錄4程序清單...........................................................................................................

16、............54貴州大學(xué)本科畢業(yè)論文（設(shè)計(jì)）第III頁simplexwirelesscallingsystemAbstractThesimplexwirelesscallingsystemconsistsoftwoparts:transmitpartreceivepart.Thetransmitpartadoptsthephaselockedlooppatternoffrequencysynthesizingtechnolo

17、gyusestheMC145152MC12022chipstocomposethephaselockedloop.Itlocksthefrequencyofthecarrierwaveat35MHz.Thestabilizationofthecarrierwavecanbe4105theaccuracycanbe3105.Thefrequencymodulationtheconfectionofthecarrierwavearereal

18、izedbythecapacitychangingdiodeV149theintegrationvoltagecontroloscillatMC1648chip.Theendpoweramplifierusestheaudion2SC1970tomakeitwkinthethirdmagnifyingstateitimprovestheefficiencyofthemagnifierthepoweroftheoutputreachest

19、hedesigndem.ThereceivepartusesthesupercosmicallyAMFMdimensionalsoundstereoradioreceptionintegrationchipCXA1238Sasthemainpart.Thesensitivity、themirrcontrolrestrain、theSNReverycapabilityindexallreachthedesigndem.Theaudiofr

20、equencypoweramplifieradoptstheintegrationchipLM386.Themaximumvoltageamplifyingmultipleis200.ItusesPT22622272codingdecodingcircuittorealizethedatatransmissionoperationaswellastheplatfmchoosingfunction.Theinputoftheaudiofr

21、equencythedatacanbeautomaticallytransfmed.AT89S52isusedasthecontrollingpartofthewholesystem.ThedesignoftheprogramadoptstheClanguagetomakeitbeprogramminglyrealizedinthetranslat.Thedisplayadopts12864latticeLCDtoshow.Aftert

溫馨提示

  • 1. 本站所有資源如無特殊說明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁內(nèi)容里面會(huì)有圖紙預(yù)覽，若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 眾賞文庫僅提供信息存儲(chǔ)空間，僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理，對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請(qǐng)與我們聯(lián)系，我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

評(píng)論

0/150

提交評(píng)論