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1、任意波形發(fā)生器設(shè)計(jì)學(xué)號(hào):14122502243畢業(yè)設(shè)計(jì)作者院部指導(dǎo)老師完成時(shí)間劉慧屆別2016物理與電子學(xué)院專業(yè)電子科學(xué)與技術(shù)易立華職稱副教授2016.05畢業(yè)設(shè)計(jì)摘要任意波形發(fā)生器(ArbitraryWaveformGenerator,AWG)作為一種多波型的信號(hào)發(fā)生器,它不僅可以產(chǎn)生鋸齒波、正弦波等常規(guī)波形,而且還能表現(xiàn)出載波調(diào)制的多樣化特點(diǎn),使波形發(fā)生調(diào)幅、調(diào)相、調(diào)頻和脈沖調(diào)制等。甚至能利用計(jì)算機(jī)軟件實(shí)現(xiàn)波形的編輯,生成用戶所需要的任意波形。任意波形發(fā)生器廣泛應(yīng)用于自動(dòng)控制、電子電路和科學(xué)試驗(yàn)領(lǐng)域,是一款給電子測(cè)量工作提供符合技術(shù)要求的
2、電信號(hào)設(shè)備。因此在各個(gè)領(lǐng)域都得到迅猛的發(fā)展。本論文設(shè)計(jì)一款任意波形發(fā)生器,該系統(tǒng)由輸入模塊、FPGA模塊、DAC數(shù)模轉(zhuǎn)換模塊、顯示模塊4個(gè)部分組成。該設(shè)計(jì)將虛擬化的儀器技術(shù)、串行總線接口技術(shù)和直接數(shù)字頻率合成技術(shù)完美地結(jié)合在一起,以現(xiàn)場(chǎng)可編程門陣列(FPGA)作為硬件基礎(chǔ),然后再通過邏輯設(shè)計(jì)、系統(tǒng)軟件設(shè)計(jì)和系統(tǒng)硬件電路設(shè)計(jì),實(shí)現(xiàn)了一款基于直接數(shù)字頻率合成技術(shù)的低成本、便攜式、可擴(kuò)展的可立即使用的任意波形發(fā)生器。關(guān)鍵詞:數(shù)字頻率合成器;verilog;FPGA;仿真I畢業(yè)設(shè)計(jì)AbstractArbitrarywaveformgenerator(
3、ArbitraryWaveformGenerator,AWG)isamultiwavesignalgenerator.Itcannotonlygeneratesasawtoothwave,sinewaveandsoonconventionalwaveformandthediversificationofthemodulatedcarrier,sothatthewaveformoccurrenceamplitudemodulation,phasemodulation,frequencymodulationandpulsemodulation.C
4、anevenusecomputersoftwaretorealizethewaveformoftheeditor,theuserneedstogeneratearbitrarywaveform.Arbitrarywaveformgeneratoriswidelyusedinthefieldofautomaticcontrol,electroniccircuitandscientificexperiment.Itisanelectricalsignalequipmentwhichmeetsthetechnicalrequirementsfore
5、lectronicmeasurement.Thispaperdesignsanarbitrarywaveformgenerator,whichiscomposedof4parts,inputmodule,FPGAmodule,DACmoduleanddisplaymodule.Thedesignthevirtualinstrumenttechnology,serialbusinterfacetechnologyanddirectdigitalfrequencysynthesistechnologyperfectcombinationtoget
6、her,convertibletofieldprogrammablegatearray(FPGA)asthebasisofhardware,andthenthroughthelogicdesign,systemsoftwaredesignandthehardwarecircuitdesign,andtheimplementationofaarbitrarywaveformgeneratorbasedondirectdigitalfrequencysynthesistechnologyoflowcost,portable,scalableand
7、canbeimmediatelyused.Keywords:Digitalfrequencysynthesizer;Verilog;FPGA;SimulationII畢業(yè)設(shè)計(jì)目錄摘要...............................................................................................................................IAbstract...............................................
8、............................................................................II第一章緒