基于fpga的軟件無線電中數(shù)字下變頻器的設(shè)計(jì)與實(shí)現(xiàn)畢業(yè)論文

1、基于FPGA的DDC的設(shè)計(jì)與實(shí)現(xiàn)目錄摘要..............................................................IABSTRACT...........................................................II第一章緒論........................................................11.1軟件無

2、線電概述................................................11.1.1無線通信國內(nèi)外發(fā)展現(xiàn)狀....................................11.1.2軟件無線電概念的提出......................................21.2數(shù)字下變頻技術(shù)的應(yīng)用與發(fā)展....................................31.2.1數(shù)字

3、下變頻技術(shù)的應(yīng)用及發(fā)展................................31.2.2FPGA在數(shù)字下變頻領(lǐng)域的應(yīng)用................................31.3本論文的內(nèi)容安排..............................................4第二章數(shù)字下變頻技術(shù)理論基礎(chǔ)......................................52.1數(shù)字下變頻理論概述

4、............................................52.1.1數(shù)字混頻正交變換理論......................................52.1.2數(shù)字下變頻原理............................................72.1.3影響數(shù)字下變頻器性能的主要因素............................72.2多速率數(shù)字信號(hào)處理...

5、.........................................82.1.1整數(shù)倍抽取和內(nèi)插..........................................82.3高效數(shù)字濾波.................................................102.3.1積分梳狀濾波器基本理論...................................102.3.2半帶濾波

6、器的基本理論.....................................122.4數(shù)控振蕩器NCO中采用的CDIC算法............................13第三章數(shù)字下變頻器的設(shè)計(jì)..........................................163.1基于FPGA的數(shù)字下變頻設(shè)計(jì)原理................................16基于FPGA的DDC的設(shè)計(jì)與實(shí)

7、現(xiàn)3整體系統(tǒng)方案、進(jìn)行模塊劃分和接口定義：對(duì)各個(gè)設(shè)計(jì)中主要的相關(guān)算法進(jìn)行分析比較，確定模塊的實(shí)現(xiàn)方式。由于系統(tǒng)的復(fù)雜性、時(shí)間和個(gè)人精力等因素，本文完成了模塊的邏輯設(shè)計(jì)及仿真驗(yàn)證，系統(tǒng)總體的整合、仿真驗(yàn)證還未徹底完成。但是已經(jīng)得到驗(yàn)證結(jié)果表明，此次的設(shè)計(jì)結(jié)構(gòu)和思想是正確的，本人下一步需要做的工作就是完成系統(tǒng)整體的仿真和驗(yàn)證，并將其功能加以完善。關(guān)鍵詞：軟件無線電；數(shù)字下變頻器；FPGA；VHDLAbstractTheceideaofsof

8、twareradioisinthegeneralhardwareplatfmofcommunicationsoftwareloadedwithdifferentwaysofcommunicationbetweentheconversion.Thisnewdesignmakedifferentcommunicationhardwareequipmentdifferentcommunicationthisdiscussesprojectis

9、anFPGAbasedsystemofUUCUDCinthesoftwareradio.ThepaperputupamethodofdigitalconvertersystemdesignbasedonFPGAresearchthensimulationbyQuartusIIprovedthefeasibilityofthedesign.Firstlythisarticlebrieflyintroducesthebasicstructu

10、reofsoftwareradioanalyzesindetailitskeytechnology—digitalfrequencypartsofthefunctionsprinciples.ThenseparetelydesignfunctionmoduleincludingtheNCO’sdesigndigitalsignaldecimationfilter(CICintegralcombfilter、HBhalfbfilter)d