无线电导航系统岸基发射台软件设计及实现

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1、哈尔滨工程大学硕士学位论文摘要扩频通信技术以其优越的抗干扰、多址能力、抗多径干扰特性在军事通信、导航定位系统中得到广泛应用。本课题研究的无线电导航系统就是扩频通信系统在导航定位中应用的又一实例。论文首先回顾国内外的各种导航系统的发展，比较各种导航系统的特点，并且展望了无线电导航的前景。其次对扩频通信原理、无线电导航定位原理以及无线电导航系统的构成作了介绍，论述了圆圆定位原理在无线电导航系统(岸基导航台链系统和舰载接收机部分)的应用。再次从岸基导航台系统的组成和特点出发，逐步深入的介绍了导航台的技术指标要求，介绍了北斗卫

2、星系统、短波宽带发射机、低仰角高效率发射天线等设备。最后论文着重论述了监控系统软件的设计和实现。监控软件通过VC编程实现，完成设备启动与检测、扩频信号的生成与发射和设备运行期的状态监测等任务。监控程序中，工控机如何与周边设备进行信息交换与融合是本软件的关键技术，在论文中作了重点论述。关键词：扩频通信；无线电导航：串口通信；visa哈尔滨工程大学硕士学位论文ABSTRACTThespreadspectrumcommunicationtechniquesarewidelyusedinmilitarycommunicatio

3、nsystemandnavigationandpositioningsystem，becauseithasthefollowingperformance：ahighanti-jammingperformance,easytorealizethemulti—accesscommunicationandahi【曲anti-reflectingperformance．Theradionavigationsystemthatthepaperworksonisanotherexampleofapplyingthespreadsp

4、ectrumcommunicationtechniquetothenavigationandpositioningfields．Firstly,thedevelopmentofallkindsofnavigationsystemarounddomesticandoverseasisreviewed，thecharacteristicofnavigationsystemsarecomparedandtheforegroundoftheradionavigationsystemisprospected．Secondly,t

5、hetheoryofspreadspectrumcommunication，radionavigationsystemandtheconstitutionofradionaVigationsystemaleintroduced．Theapplicationofpositioningtheoryoftheradionavigationsystem(beaconandthereceiver)andisthatthep印erworksOn．Thirdly,Startingfromtheconstitutionandthepr

6、operties，thepaperstatestechniqueguidelinesofthenavigationbesomaboutthesystem，suchas‘'Beidou'’satellitepositioningsystem．short-wavewide-bandtransmitter,high-efficiencyantennawithlowradiantelevation．Finally,thedesignandrealizationoftheMonitorSystemsoftwareonradion

7、avigationsystem．ThelanguageofVisualC++isusedintheestablishmentofmonitorsoftwarewhichaccomplishesstartingandtestingequipments，generatingandtransmittingspectrumsignal，monitoringtherunningequipmentandSOon．Thekeytechniquesofthemonitoringsoftwarehowtogoalongwiththein

8、formationexchangeandimmergebetweencomputerofindustrycontrolandperipheralinstruments，whichislaidstresson．KeyWords：SpreadSpectrumCommunication；RadioNavigation；communica