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1、贵州民族学院毕业论文跳频扩频技术的实现王杰昌【摘要】:现代社会，随着一系列高新科技的飞速发展，军事领域和民用通信领域对信号的准确性和抗干扰性要求越来越高，由此产生了具有高度优越性的跳频系统，并且其应用也越来越广泛。本文简述了扩频通信系统的原理、分类、技术指标及应用，重点阐述了跳频系统的组成及工作原理、跳频系统的关键技术包括频率合成技术和跳频同步技术；分层次地介绍了跳频序列的研究方向及现状，这其中又以蓝牙跳频序列和基于混沌序列的跳频序列族为重点。简要阐述了跳频系统与直接序列扩频系统、跳时系统和DS/FH混合跳频系统的性能比较，从而更加突出了跳频系统的优越性。最后
2、，又介绍了几种典型的跳频组网方式，如同步正交组网、同步非正交组网、异步非正交组网，针对几种组网方式分别罗列了其优点，同时也介绍了跳频系统在CDPD、短波数据通信和GSM中的应用。跳频系统虽然也存在一些不足之处，但它的抗干扰性、低截获性、良好的抗多路径干扰性和安全性等，使其在军事和民用领域都存在着极其广阔的发展前景。关键词：扩频通信跳频系统跳频同步技术跳频序列族跳频组网技术Frequency-hoppingspreadspectrumtechnologyWangJiechang57贵州民族学院毕业论文Abstract:Modernsociety,withaser
3、iesoftherapiddevelopmentofhightechnology,militaryandciviliancommunicationsontheaccuracyofthesignalandtheanti-interferencedemandishigherandhigher,theadvantagesofhighfrequencyhoppingsystem,anditsapplicationismoreandmorewidely.Thispaperdescribestheprincipleofspreadspectrumcommunication
4、systems,classification,applicationandtechnicalindexes,thispaperfocusesonthefrequencyhoppingsystemstructureandworkingprincipleofthesystem,keytechnologies,includingfrequencysynthesistechnologyandfrequencyhoppingsynchronoustechnology,Stratifiedintroducesthefhsequence,theresearchdirecti
5、onandcurrentonbluetoothfhsequenceandbasedonchaoticsequencesoffhsequenceclan.BrieflyexpoundsFHsystemandthedirectsequencespreadspectrumsystem,jumpingsystemandDS/comparisonmixedFHsystems,thusmoreprominentsuperiorityofthesystem.Finally,andintroducesseveralkindsoftypicalfhnetworkingmetho
6、ds,suchassynchronousorthogonalnetworking,synchronousandasynchronousnon-orthogonalaudit-onlinenetwork,non-orthogonalseveralnetworkmoderespectively,listingthemeritalsointroducesfhCDPDsystemindatacommunicationandGSM,short57贵州民族学院毕业论文application.Althoughfhsystemexistssomeshortcomings,bu
7、titsanti-interference,lowintercept,goodmultipathinterferenceandsafety,etc,makeitsmilitaryandcivildomainsexistextremelybroaddevelopmentprospects.Keywords:SpreadspectrumcommunicationFrequency-hoppingsystemFrequency-hoppingsynchronoustechnologyFrequency-hoppingsequenceFrequency-hopping
8、networktechnology57
