无线语音传输系统的设计与实现

毕业设计(论文)说明书题目：无线语音传输系统的设计与实现系别：电子工程系专业：电子信息工程学生姓名：学号：指导教师：职称：题目类型：理论研究实验研究工程设计工程技术研究软件开发2008年6月20日√Ⅰ摘要随着嵌入式系统和无线网络发展，两者已能紧密结合在一起。而且随着无线应用领域扩大，工作在ISM（工业、科学和医学）标准2.4GHz自由免费频段，已成为研究焦点。例如Wi-Fi、BlueTooth、Zigbee等无线传输协议都是应用在2.4GHz频段上，并以其数据率高、节点分布广等特点广泛应用于科研、家庭、军事等各个领域。本设计利用了SPCE061A的语音处理功能，把SPCE061A作为主控制器，借助于NordicnRF2401无线收发芯片，实现简单的双向无线语音传输功能。具体实现方法是：通过其中一套61板和无线模块（A套）实现录音功能并将压缩后的语音资源通过无线模块发射；然后另外一套61板和无线模块（B套）接收A套发送的语音资源数据，并对数据进行解码播放。两块板子均能实现语音的发送和接收。本文以无线语音传输系统的设计为主线，包括无线收发芯片的介绍、无线收发模块的设计以及语音数据的处理等，分为6个部分。其中，第1部分为背景情况和芯片介绍，第2部分主要介绍对总的设计方案的选定，第3部分主要介绍无线语音传输系统的总体设计，第4部分对无线语音传输系统的硬件设计进行了详细的介绍，第5部分描述了无线语音传输系统的软件设计，第6部分叙述系统软硬件的调试，对在调试过程中遇到的问题及其解决方法也作了讨论。关键词：无线传输；nRF2401；SPCE061A桂林电子科技大学信息科技学院毕业（论文）说明书IIAbstractWithembeddedsystemsandwirelessnetworkdeveloping,thetwohavebeenworkingcloselytogether.Moreover,astheexpansionofwirelessapplications,workedintheISM(industrial,scientificandmedical)standard2.4GHzbandfree,hasbecomeafocusofstudy.SuchasWi-Fi,BlueTooth,Zigbeeandotherwirelesstransmissionprotocolsareusedin2.4GHzband,andbecauseitshighdatarate,nodesandothercharacteristicsofwidelydistributedareusedinscientificresearch,family,militaryandotherfields.ThedesignusetheSPCE061Aofvoiceprocessingfunctions,SPCE061Aasthemaincontroller,thehelpofNordicnRF2401radiotransceiverchip,toachieveasimpletwo-waywirelessvoicetransmissionfunctions.Specificmethodis:theadoptionofasetof61panelsandwirelessmodule(Aset)toachieverecordingofthevoicecompressionandresourcesthroughthewirelessmodulelaunchandthenanothersetof61panelsandwirelessmodule(Bsets)ApackagesenttoreceiveThevoicedataresources,dataanddecodebroadcast.2voiceoftheboardcansendandreceive.Inthispaper,wirelessvoicetransmissionsystemtothedesignofthemainline,includingwirelesstransceiverchips,wirelesstransceivermoduledesignandvoicedataprocessing,dividedintosixparts.Thefirstpartofthebackgroundandchips,Part2introducesthegeneraldesignplanselected,Part3introduceswirelessvoicetransmissionsystemdesign,Part4ofthewirelessvoicetransmissionsystemhardwaredesignCarriedoutadetailed,Section5,describesthewirelessvoicetransmissionsystemsoftwaredesign,describedinsection6ofthesystemhardwareandsoftwaredebugging,intheprocessofdebuggingtheproblemsencounteredandtheirsolutionsarediscussed.Keywords：Wirelesstransmission；nRF2401；SPCE061A桂林电子科技大学信息科技学院毕业（论文）说明书III目录引言..................................................................11课题背景和芯片介绍........................................21.1课题背景............................................................21.2芯片资料............................................................21.2.1SPCE061A简介......................................................21.2.2SPCE061A性能简介.................................................31.2.3SPCE061A应用领域..................................................32.1NRF2401A无线收发芯片...............................................42.1.1芯片特性...........................................................42.1.2NRF2401主要性能指标..............................................52.1.3NRF2401工作模式控制...............................................52.1.4激活状态的模式....................................................52.1.5双超外差接收模式..................................................72.1.6结构配置模式......................................................82.1.7待机模式..........................................................82.1.8低功耗模式........................................................82.1.9配置字描述........................................................82.1.10天线输出.........................................................92.1.11应用领域.........................................................92设计任务与总体设计分析...........................................92.1设计要求............................................................102.1.1技术指标：........................................................102.2方案论证...........................................................102.2.1无线收发模块.....................................................102.2.2主控制模块.......................................................102.3总体设计...........................................................113系统总体方案介绍.................................................113.1硬件部分...........................................................113.2软件部分...........................................................114系统硬件设计......................................................124.1硬件框图...........................................................124.2无线收发模块电路...................................................124.2.1NRF2401及其外围电路..............................................12桂林电子科技大学信息科技学院毕业（论文）说明书IV4.2.2指示电路.........................................................134.2.3接口电路.........................................................134.361板结构.........................................................144.3.1SPCE061A最小系统.................................................154.3.2电源电路.........................................................154.3.3音频电路.........................................................154.3.4ICE接口电路......................................................164.4电源电路...........................