军事通信论文题目大全高中英语作文

本来想帮你回答，结果看分太少了，2000字不少哦

China can become a military power it? Can！ 1979， before the August 1， cut through the night sky shots in Nanchang， a burden of national armed forces of hope was Her departure from the Red Land after a long journey to create a new C This step-by-step with a small Mega countless war scramble to create the myth of the army， are trying to scale the commanding heights of the new military revolution， the modernization of the armed forces to Of the figures from the horse， and the Chinese armed forces have experienced only half a In between life and death of the Korean Peninsula， China refers to the military by virtue of excellent health and will to fight， to create the horse to beat mechanized army of the miracle of the armed But we also paid a huge sacrifice， the brutality of the war so that recognized and accepted by the Chinese military Rapid development of information technology， followed the historical trend of our military are trying to force the construction of the tree of the word， the establishment of a number of pilot units of China's military from the early 90's computer equipment， is now a unit of equipment to the mission and achieve a considerable level networking army We believe that the climax of training in science and technology， our military will be increasingly digitized from With the indomitable spirit of the Chinese nation， and solely the will， and dauntless of sacrifice， I have every reason to believe that in the near future， China could become a military power!

密码学在信息安全中的作用概述引言基于日常生活，同学们对密码的了解可能仅仅直观来自于社交账号的密码，银行卡的密码，若再提及电脑，可能就是开机密码。而严格的来说，上述所举密码都不是密码学中的密码，他们都只是一种口令。密码学是研究编制密码和破译密码的技术科学。研究密码变化的客观规律，应用于编制密码以保守通信秘密的，称为编码学；应用于破译密码以获取通信情报的，称为破译学，总称密码学。这里方便理解，我们可以举“门锁”的技术机制，因为它能在一定程度上反映密码学的技术思想。一、密码学的作用那么密码学的作用是什么呢？它是一门用来研究如何隐密地传递信息的学科。在现代特别指对信息以及其传输的数学性研究，常被认为是数学和计算机科学的分支，和信息论也密切相关。著名的密码学者Ron Rivest解释道：“密码学是关于如何在敌人存在的环境中通讯”。自工程学的角度，这相当于密码学与纯数学的异同。密码学是信息安全等相关议题，如认证、访问控制的核心。密码学的首要目的是隐藏信息的涵义，并不是隐藏信息的存在。由此可见，密码是通信双方按约定的法则进行信息特殊变换的一种重要保密手段，使得交流的信息获得安全保障不被他人获取。通俗一点来说，就是使信息伪装化，使未授权者不能得到信息的真实含义。二、密码学的一些相关概念首先不得不提的是加密密钥。因为加密解密都在它的控制下进行。其次是加密算法，它是用于加密的一簇数学变换，相应的，用于解密的一簇数学变换称为解密算法，而且解密算法是加密算法的逆运算，掌握了加密密钥和算法的人才算授权了的人。依照这些法则，变明文为密文（称为加密变换），变密文为明文（成为脱密变换），合法的通信双方就得以进行信息交流。三、密码的三个性质保密性，保真性和保完整性。所以密码学是在编码与破译的斗争实践中逐步发展起来的，并随着先进科学技术的应用，已成为一门综合性的尖端技术科学。它与语言学、数学、电子学、声学、信息论、计算机科学等有着广泛而密切的联系。它的现实研究成果，特别是各国政府现用的密码编制及破译手段都具有高度的机密性。四、密码的由来与信息安全的联系大约在公元前1900年前，古埃及一位奴隶主的墓志铭中就出现了一些古怪的符号。西方密码学家认为这是密码的最早出现。一般，墓志铭不需要保密，这样做大概是出于对墓主人的尊敬和追求文字表达的艺术性。而随着互联网的急速发展，网络信息的安全成了一项重大问题。密码在早期仅对文字或数码进行加、脱密变换，随着通信技术的发展，对语音、图像、数据等都可实施加、脱密变换，如今特别是在于电脑与网络安全所使用的技术，如访问控制与信息的机密性。所以密码学与计算机科学相互促进发展。现在密码学已被广泛应用在日常生活：包括自动柜员机的芯片卡、电脑使用者存取密码、电子商务等等。要说到密码与信息安全的关系，不难理解，密码是信息安全的关键技术或核心技术。从而，国际上，密码属于一个国家的主权。即，任何一个国家有自主选。再由于信息所需的保密性，几乎所有的信息安全领域都要应用密码技术，所以密码也是信息安全的共性技术。那么密码对信息安全的重要性也可见一斑了。五、信息安全的专业定义信息安全是指信息系统（包括硬件、软件、数据、人、物理环境及其基础设施）受到保护，不受偶然的或者恶意的原因而遭到破坏、更改、泄露，系统连续可靠正常地运行，信息服务不中断，最终实现业务连续性。信息安全主要包括以下五方面的内容，即需保证信息的保密性、真实性、完整性、未授权拷贝和所寄生系统的安全性。其根本目的就是使内部信息不受内部、外部、自然等因素的威胁。为保障信息安全，要求有信息源认证、访问控制，不能有非法软件驻留，不能有未授权的操作等行为。既然有人想要对信息进行加密处理，那么也有敌人想要破解密码从而截取信息。六、密码破译的发展与信息安全的联系1412年，波斯人卡勒卡尚迪所编的百科全书中载有破译简单代替密码的方法。到16世纪末期，欧洲一些国家设有专职的破译人员，以破译截获的密信。密码破译技术有了相当的发展。1863年普鲁士人卡西斯基所著《密码和破译技术》，以及1883年法国人克尔克霍夫所著《军事密码学》等著作，都对密码学的理论和方法做过一些论述和探讨。不得不说，两次世界大战对于密码学和信息安全来说都是发展的“绝胜时期”。第一次世界大战中的密码斗法。美国破译其他国家密码，一战结束后，军情处8 科被解散。雅德利带领留下的50多人成立了美国黑室”，专门破译各国的外交密电。1917-1929，雅德利领导的“美国黑室”小组破译了45000多份密电，包括中国、德国、英国、法国、俄国等20多国。10雅德利经营了十几年的 “美国黑室”被国务卿关闭，理由是“君子之间不偷看信件”。此语成为美国密码史上的一句名言。后来，雅德利把这段经历写成一本书《美国黑室》。第二次世界大战中的密码斗法。二战时期密码技术有了很大提高，一战时的密码技术主要依靠手工进行加解密，密码的复杂程度、安全性和加解密速度都不够高，密码破译人员主要由语言专家，猜谜专家，象棋冠军组成。战时的密码技术实现了机电化，加解密用机电装置进行，密码的复杂程度、安全性和加解密速度都有很大提高。密码破译人员也有数学专家的加入，并发挥主力作用。军事家评价：“盟军在密码方面的成功，使第二次世界大战提前十年结束”。中国的抗日战争是第二次世界大战的重要组成部分，值得骄傲的是中国人破译了日本部分密码，为赢得战争胜利作出了重要贡献为赢得战争胜利作出了重要贡献1938年底雅德利来重庆任军统密码破译顾问，为军统培训了200多名密码人才，7回国。后来我国破译了日本间谍的重庆气象密电，抓获了间谍；还破译了汪伪的一个间谍密码，并抓获了间谍；还破译了日本空军的密码，使重庆空战损失减小；还破译了日本外务省的部分密码，获得了珍珠港事件前的部分情报。到1949年美国人香农发表了《秘密体制的通信理论》一文，应用信息论的原理分析了密码学中的一些基本问题。自19世纪以来，由于电报特别是无线电报的广泛使用，为密码通信和第三者的截收都提供了极为有利的条件。通信保密和侦收破译形成了一条斗争十分激烈的隐蔽战线。当今世界各主要国家的政府都十分重视密码工作，有的设立庞大机构，拨出巨额经费，集中数以万计的专家和科技人员，投入大量高速的电子计算机和其他先进设备进行工作。与此同时，各民间企业和学术界也对密码日益重视，不少数学家、计算机学家和其他有关学科的专家也投身于密码学的研究行列，更加速了密码学的发展。最终密码学终于成为一门独立的学科。七、密码学与信息安全的联系密码学是一门跨学科科目，从很多领域衍生而来：它可以被看做是信息理论，却使用了大量的数学领域的工具，众所周知的如数论和有限数学。信息安全也是一门涉及计算机科学、网络技术、通信技术、密码技术、信息安全技术、应用数学、数论、信息论等多种学科的综合性学科。信息作为一种资源，它的普遍性、共享性、增值性、可处理性和多效用性，使其对于人类具有特别重要的意义。我国的改革开放带来了各方面信息量的急剧增加，并要求大容量、高效率地传输这些信息。传输信息的方式很多，有局域计算机网、互联网和分布式数据库，有蜂窝式无线、分组交换式无线、卫星电视会议、电子邮件及其它各种传输技术。信息在存储、处理和交换过程中，都存在泄密或被截收、窃听、窜改和伪造的可能性，所以安全的保障被高度重视起来。不管是机构还是个人，正把日益繁多的事情托付给计算机来完成，敏感信息正经过脆弱的通信线路在计算机系统之间传送，专用信息在计算机内存储或在计算机之间传送，电子银行业务使财务账目可通过通信线路查阅，执法部门从计算机中了解罪犯的前科，医生们用计算机管理病历，所有这一切，最重要的问题是不能在对非法（非授权）获取（访问）不加防范的条件下传输信息。由此我们提出安全策略这个术语，信息安全策略是指为保证提供一定级别的安全保护所必须遵守的规则。实现信息安全，不但靠先进的技术，而且也得靠严格的安全管理，法律约束和安全教育。八、密码学与信息安全共同迅速发展中国信息安全行业起步较晚，自本世纪初以来经历了三个重要发展阶段(萌芽、爆发和普及阶段，产业规模逐步扩张。带动了市场对信息安全产品和服务需求的持续增长;另外，政府重视和政策扶持也不断推动我国信息安全产业的快速发展。据《2013-2017年中国信息安全行业发展前景与投资战略规划分析报告》数据显示，2010年中国信息安全产品市场规模达到74亿元，同比增长23%。前瞻网认为，信息安全行业具有较大发展潜力，但目前国内互联网行业的信息安全形势不容乐观，随着网络日益渗透到社会生活的各个方面，增强网络信息安全意识、提升信息安全防范措施变得尤为迫切。2012年信息安全产业将步入高速发展阶段，而整个互联网用户对安全产品的要求也转入“主动性安全防御”。随着用户安全防范意识正在增强，主动性安全产品将更受关注，主动的安全防御将成为未来安全应用的主流。信息安全的市场主流电子商务将加密技术作为基本安全措施。加密技术分为两类，即对称加密和非对称加密。一、对称加密又称私钥加密，即信息的发送方和接收方用同一个密钥去加密和解密数据。它的最大优势是加/解密速度快，适合于对大数据量进行加密，但密钥管理困难。如果进行通信的双方能够确保专用密钥在密钥交换阶段未曾泄露，那么机密性和报文完整性就可以通过这种加密方法加密机密信息、随报文一起发送报文摘要或报文散列值来实现。二、非对称加密又称公钥加密，使用一对密钥来分别完成加密和解密操作，其中一个公开发布（即公钥），另一个由用户自己秘密保存（即私钥）。信息交换的过程是：甲方生成一对密钥并将其中的一把作为公钥向其他交易方公开，得到该公钥的乙方使用该密钥对信息进行加密后再发送给甲方，甲方再用自己保存的私钥对加密信息进行解密因为在互联网上，每台计算机都存在或多或少的安全问题。安全问题必然会导致严重后果。诸如系统被破坏，数据丢失，机密被盗和直接、间接的经济损失，这都是不容忽视的问题。既然说到安全，我们经常提到要使用防火墙、杀毒软件等等。而密码技术的有一个劣势就是密码不擅长解决信息处理形态的安全问题。这是目前病毒泛滥，而我们又没有很好办法的根本原因。因此请记住：“再好的密码也不能杀病毒，再好的杀病毒软件也不能当密码用”。两者都很重要！说了这么多，密码学与信息安全就是相辅相成的关系。密码学因信息安全得以更快发展，信息在密码学的保障下得以安全交流。参考文献：　　[1]谢希仁计算机网络(第4版)[M]北京:电子工业出版社，　　[2]张民，徐跃进网络安全实验教程，清华大学出版社，2007，　　[3]许治坤，王伟等网络渗透技术，电子工业出版社，2005-5-　　[4]武新华，翟长森等，黑客攻防秘技大曝光，清华大学出版社，2006．。。这是我之前纯手写的，还能关于密码学的，觉得能用就拿去吧

“军事思维理论的发展是同军事实践紧密相联的，有什么样的军事实践就有什么样的军事思维，因而也就有什么样的军事思维理论。” [2](P2)“军事思维的历史与战争的历史同样悠久”。[3]军事思维学是“军事理论观点的系统化”[4](P27)。这些论断/html/zhexueqita/20090404/html

军事通信论文题目大全高中英语

学术堂整理了十五个好写的英语论文题目，供大家进行参考：试论简奥斯汀生活对其小说的影响 (On the Impact of Jane Austen’s Life on Her Novels) “真实的诺言”与传统文化的碰撞——简析“真人秀”的实质和本地化过程 (When True Lies Challenge Tradition—An Analysis of the Reality and Localization of Reality TV) 从台湾问题看中美关系 (The Sino-US Relation—The Taiwan Issue)《傲慢与偏见》的生命力 (The Great Vitality of Pride and Prejudice) 平凡中的不平凡——《傲慢与偏见》(Significance in Commonplace—Pride and Prejudice) 萨皮尔沃夫理论 (Sapir-Whorf Hypothesis) 论格里高尔的悲剧 (An Analysis of Gregor’s Tragedy) 对大学生心理健康问题予更多关注 (More Attention to the Psychological Health of College Students) 文体学: 语言学习的科学 (Stylistics: A Scientific Approach) 佛教在西方 (Buddhism in the West) 非语言交际 (Nonverbal Communication) 国际反恐 (International Anti-Terrorism) 全球资金市场近期特征与走向 (The Character and Tendency of Global Capital Market in Recent Decades) 从《老人与海》中桑堤亚哥的性格可知——人是打不败的 (A Man Cannot Be Defeated—From the Character of Santiago in The Old Man and the Sea) 南方的失落 (The Loss of the South)

军校学员现在都在网上找答案了，哎，为国家担忧啊！靠自己学真本事，再下到部队之后，手下的兵才会看的起你，要是准备混，你就准备连新兵都鄙视你吧！

基于WIN CE的ADSL线路参数研究ADSL line parameters research based on WIN CE _EMC&dq=ADSL&printsec=frontcover&source=web&ots=oJXbatzNWO&sig=fyomvlADYeB7NRS2gjTJAfpSapQ--------------Windows CE (also known officially as Windows Embedded CE since version 0[2][3]， and sometimes abbreviated WinCE) is a variation of Microsoft's Windows operating system for minimalistic computers and embedded Windows CE is a distinctly different kernel， rather than a trimmed-down version of desktop W It is not to be confused with Windows XP Embedded which is NT- It is supported on Intel x86 and compatibles， MIPS， ARM， and Hitachi SuperH FeaturesWindows CE is optimized for devices that have minimal storage—a Windows CE kernel may run in under a megabyte of Devices are often configured without disk storage， and may be configured as a “closed” system that does not allow for end-user extension (for instance， it can be burned into ROM) Windows CE conforms to the definition of a real-time operating system， with a deterministic interrupt It supports 256 priority levels and uses priority inheritance for dealing with priority The fundamental unit of execution is the This helps to simplify the interface and improve execution Microsoft has stated that the ‘CE’ is not an intentional initialism， but many people believe CE stands for ‘Consumer Electronics’ or ‘Compact Edition’; users often disparagingly called it “Wince”[4] Microsoft says it implies a number of Windows CE design precepts， including “Compact， Connectable， Compatible， Companion， and E”[5] The first version， known during development under the codename “Pegasus”， featured a Windows-like GUI and a number of Microsoft's popular applications， all trimmed down for smaller storage， memory， and speed of the palmtops of the Since then， Windows CE has evolved into a component-based， embedded， real-time operating It is no longer targeted solely at hand-held Many platforms have been based on the core Windows CE operating system， including Microsoft's AutoPC， Pocket PC 2000， Pocket PC 2002， Windows Mobile 2003， Windows Mobile 2003 SE， Windows Mobile 0， Windows Mobile 6， Smartphone 2002， Smartphone 2003 and many industrial devices and embedded Windows CE even powered select games for the Sega Dreamcast， was the operating system of the controversial Gizmondo handheld， and can partially run on modified Microsoft Xbox game A distinctive feature of Windows CE compared to other Microsoft operating systems is that large parts of it are offered in source code First， source code was offered to several vendors， so they could adjust it to their Then products like Platform Builder (an integrated environment for Windows CE OS image creation and integration， or customized operating system designs based on CE) offered several components in source code form to the general However， a number of core components that do not need adaptation to specific hardware environments (other than the CPU family) are still distributed in binary form Development toolsVisual StudioLate versions of Microsoft Visual Studio support projects for Windows CE / Windows Mobile， producing executable programs and platform images either as an emulator or attached by cable to an actual mobile A mobile device is not necessary to develop a CE The NET Compact Framework supports a subset of the NET Framework with projects in C# and VBNET， but not Managed C++Platform BuilderThis programming tool is used for building the platform (BSP + Kernel)， device drivers (shared source or custom made) and also the This is a one step environment to get the system up and One can also use Platform Builder to export an SDK (standard development kit) for the target microprocessor (SuperH， x86， MIPS， ARM ) to be used with another associated tool set named Embedded Visual C++ (eVC)The Embedded Visual C++ tool is for development of embedded application for Windows CE based This tool can be used standalone using the SDK exported from Platform Builder or using the Platform Builder using the Platform Manager connectivity Relationship to Windows Mobile， Pocket PC， and SmartPhoneOften Windows CE， Windows Mobile， and Pocket PC are used This practice is not entirely Windows CE is a modular/componentized operating system that serves as the foundation of several classes of Some of these modules provide subsets of other components' features ( varying levels of windowing support; DCOM vs COM)， others which are mutually exclusive (Bitmap or TrueType font support)， and others which add additional features to another One can buy a kit (the Platform Builder) which contains all these components and the tools with which to develop a custom Applications such as Excel Mobile/Pocket Excel are not part of this The older Handheld PC version of Pocket Word and several other older applications are included as samples， Windows Mobile is best described as a subset of platforms based on a Windows CE Currently， Pocket PC (now called Windows Mobile Classic)， SmartPhone (Windows Mobile Standard)， and PocketPC Phone Edition (Windows Mobile Professional) are the three main platforms under the Windows Mobile Each platform utilizes different components of Windows CE， as well as supplemental features and applications suited for their respective Pocket PC and Windows Mobile is a Microsoft-defined custom platform for general PDA use， and consists of a Microsoft-defined set of minimum profiles (Professional Edition， Premium Edition) of software and hardware that is The rules for manufacturing a Pocket PC device are stricter than those for producing a custom Windows CE-based The defining characteristics of the Pocket PC are the digitizer as the primary Human Interface Device and its extremely portable The SmartPhone platform is a feature rich OS and interface for cellular phone SmartPhone offers productivity features to business users， such as email， as well as multimedia capabilities for The SmartPhone interface relies heavily on joystick navigation and PhonePad Devices running SmartPhone do not include a touchscreen SmartPhone devices generally resemble other cellular handset form factors， whereas most Phone Edition devices use a PDA form factor with a larger Windows Mobile 5 supports USB 0 and new devices running this OS will also conform to the USB Mass Storage Class， meaning the storage on PPC can be accessed from any USB-equipped PC， without requiring any extra software， except requiring a compliant In other words， you can use it as a flash Competing productsCompetitors to consumer CE based PDA platforms like Pocket PC – the main application of Windows CE – are Java， Symbian OS， Palm OS， iPhone OS and Linux based packages like Qtopia Embedded Linux environment from Trolltech， Convergent Linux Platform from a La Mobile， and Access Linux Platform from Orange and AThe secondary usage of CE is in devices in need of graphical user interfaces， (point of sale terminals， media centers， web tablets， thin clients) as the main selling point CE is the look and feel being similar to desktop W The competition is Windows XP， Linux and graphical packages for simpler embedded operating Being an RTOS， Windows CE is also theoretically a competitor to any realtime operating system in the embedded space， like VxWorks， ITRON or eC The dominating method， however， of mixing Windows look and feel with realtime on the same hardware， is to run double operating systems using some virtualization technology， like TRANGO Hypervisor from TRANGO Virtual Processors or Intime from TenAsys in the case of Windows， and OS Ware from VirtualLogix， Padded Cell from Green Hills Software， OKL4 from Open Kernel Labs， TRANGO Hypervisor from TRANGO Virtual Processors， RTS Hypervisor from Real-Time Systems or PikeOS from Sysgo， in case of the ---------Asymmetric Digital Subscriber Line (ADSL) is a form of DSL， a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can It does this by utilizing frequencies that are not used by a voice telephone A splitter - or microfilter - allows a single telephone connection to be used for both ADSL service and voice calls at the same Because phone lines vary in quality and were not originally engineered with DSL in mind， it can generally only be used over short distances， typically less than 3mi (5 km) [William Stallings' book]At the telephone exchange the line generally terminates at a DSLAM where another frequency splitter separates the voice band signal for the conventional phone Data carried by the ADSL is typically routed over the telephone company's data network and eventually reaches a conventional internet In the UK under British Telecom the data network in question is its ATM network which in turn sends it to its IP network IP CThe distinguishing characteristic of ADSL over other forms of DSL is that the volume of data flow is greater in one direction than the other， it is Providers usually market ADSL as a service for consumers to connect to the Internet in a relatively passive mode: able to use the higher speed direction for the "download" from the Internet but not needing to run servers that would require high speed in the other There are both technical and marketing reasons why ADSL is in many places the most common type offered to home On the technical side， there is likely to be more crosstalk from other circuits at the DSLAM end (where the wires from many local loops are close to each other) than at the customer Thus the upload signal is weakest at the noisiest part of the local loop， while the download signal is strongest at the noisiest part of the local It therefore makes technical sense to have the DSLAM transmit at a higher bit rate than does the modem on the customer Since the typical home user in fact does prefer a higher download speed， the telephone companies chose to make a virtue out of necessity， hence ADSL On the marketing side， limiting upload speeds limits the attractiveness of this service to business customers， often causing them to purchase higher cost Digital Signal 1 services In this fashion， it segments the digital communications market between business and home usersHow ADSL worksOn the wireCurrently， most ADSL communication is full Full duplex ADSL communication is usually achieved on a wire pair by either frequency division duplex (FDD)， echo canceling duplex (ECD)， or time division duplexing (TDD) FDM uses two separate frequency bands， referred to as the upstream and downstream The upstream band is used for communication from the end user to the telephone central The downstream band is used for communicating from the central office to the end With standard ADSL (annex A)， the band from 875 kHz to 138 kHz is used for upstream communication， while 138 kHz – 1104 kHz is used for downstream Each of these is further divided into smaller frequency channels of 3125 kH During initial training， the ADSL modem tests which of the available channels have an acceptable signal-to-noise The distance from the telephone exchange， noise on the copper wire， or interference from AM radio stations may introduce errors on some By keeping the channels small， a high error rate on one frequency thus need not render the line unusable: the channel will not be used， merely resulting in reduced throughput on an otherwise functional ADSL Vendors may support usage of higher frequencies as a proprietary extension to the However， this requires matching vendor-supplied equipment on both ends of the line， and will likely result in crosstalk issues that affect other lines in the same There is a direct relationship between the number of channels available and the throughput capacity of the ADSL The exact data capacity per channel depends on the modulation method [edit] ModulationADSL initially existed in two flavours (similar to VDSL)， namely CAP and DMT CAP was the de facto standard for ADSL deployments up until 1996， deployed in 90 percent of ADSL installs at the However， DMT was chosen for the first ITU-T ADSL standards， G1 and G2 (also called Gdmt and Glite respectively) Therefore all modern installations of ADSL are based on the DMT modulation Annexes J and M shift the upstream/downstream frequency split up to 276 kHz (from 138 kHz used in the commonly deployed annex A) in order to boost upstream Additionally， the "all-digital-loop" variants of ADSL2 and ADSL2+ (annexes I and J) support an extra 256 kbit/s of upstream if the bandwidth normally used for POTS voice calls is allocated for ADSL While the ADSL access utilizes the 1 MHz band， ADSL2+ utilizes the 2 MHz The downstream and upstream rates displayed are theoretical Note also that because Digital subscriber line access multiplexers and ADSL modems may have been implemented based on differing or incomplete standards some manufacturers may advertise different For example， Ericsson has several devices that support non-standard upstream speeds of up to 2 Mbit/s in ADSL2 and ADSL2+[edit] Installation issuesDue to the way it uses the frequency spectrum， ADSL deployment presents some It is necessary to install appropriate frequency filters at the customer's premises， to avoid interferences with the voice service， while at the same time taking care to keep a clean signal level for the ADSL In the early days of DSL， installation required a technician to visit the A splitter was installed near the demarcation point， from which a dedicated data line was This way， the DSL signal is separated earlier and is not attenuated inside the customer However， this procedure is costly， and also caused problems with customers complaining about having to wait for the technician to perform the As a result， many DSL vendors started offering a self-install option， in which they ship equipment and instructions to the Instead of separating the DSL signal at the demarcation point， the opposite is done: the DSL signal is "filtered off" at each phone outlet by use of a low pass filter， also known as This method does not require any rewiring inside the customer A side effect of the move to the self-install model is that the DSL signal can be degraded， especially if more than 5 voiceband devices are connected to the The DSL signal is now present on all telephone wiring in the building， causing attenuation and A way to circumvent this is to go back to the original model， and install one filter upstream from all telephone jacks in the building， except for the jack to which the DSL modem will be Since this requires wiring changes by the customer and may not work on some household telephone wiring， it is rarely It is usually much easier to install filters at each telephone jack that is in

《论兔子吃掉狐狸的可能性》

军事通信论文题目大全高中英语版

你也太有才了不能在网上搜到的自己还在网上发帖~~~

我靠，本来想写的，但是你的悬赏分太少了，- -！

《论兔子吃掉狐狸的可能性》

军事通信论文题目大全高中英语范文

这位专业人士论文的基本形式提出论点，论据，论证这就是论文的基本常识这位，专业人不要小看人呢，若保证军事机要不被泄露的化，可以写论文的

学术堂整理了十五个通信工程毕业论文题目供大家进行参考：　　1、高移动无线通信抗多普勒效应技术研究进展　　2、携能通信协作认知网络稳态吞吐量分析和优化　　3、协作通信中基于链路不平衡的中继激励　　4、时间反转水声通信系统的优化设计与仿真　　5、散射通信系统电磁辐射影响分析　　6、无人机激光通信载荷发展现状与关键技术　　7、数字通信前馈算法中的最大似然同步算法仿真　　8、沙尘暴对对流层散射通信的影响分析　　9、测控通信系统中低延迟视频编码传输方法研究　　10、传输技术在通信工程中的应用与前瞻　　11、城市通信灯杆基站建设分析　　12、电子通信技术中电磁场和电磁波的运用　　13、关于军事通信抗干扰技术进展与展望　　14、城轨无线通信系统改造方案研究　　15、无线通信系统在天津东方海陆集装箱码头中的运用

论文撰写步骤：一、论文的标题部分标题就是题目或题名，标题需要以最恰当、最简明的词语反映论文中重要的特定内容逻辑组合，论文题目非常重要，必须用心斟酌选定。二、论文的摘要论文一般应有摘要，它是论文内容不加注释和评论的简短陈述。摘要应该包含以下内容：　　1、从事这一研究的目的和重要性 2、研究的主要内容3、完成了哪些工作4、获得的基本结论和研究成果，突出论文的新见解 5、结构或结果的意义三、论文关键词关键词属于主题词中的一类，主题词除关键词外，还包含有单元词、标题词和叙词。关键词是标识文献的主题内容，单未经规范处理的主题词。四、引言又称为前言，属于正片论文的引论部分。写作内容包括：1、研究的理由2、研究目的3、背景4、前人的工作和知识空白5、作用和意义五、正文部分论文的主题，占据论文大部分篇幅。论文所体现的创造性成果或新的研究结果，都将在这一部分得到充分的反映，要求这部分内容一定要充实，论据充分可靠，论证有利，主题明确。六、参考文献参考文献是文章在研究过程和论文撰写是所参考过的有关文献的目录，参考文献的完整标注是对原作者的尊重。不只在格式上有具体要求，在数量、种类、年份等方面又有相关要求。

军事通信技术论文题目大全高中英语

结构，提高综合素质，增强国防概念。之于知识结构的改变，通过对中国近代国防历史的学习，我们认识到就中国之所以落后挨打，就是因为社会制度的落后，中国在近代领土被宰割，人民被屠杀，财富被掠夺，民族尊严被肆意践踏中国人民经过无数次的探索、挫折、失败最后才找到了社会主义这条符合人类社会发展的客观规律的正确道路，从而走上了独立富强的道路因此，只有社会主义新中国的建立才使中国的命运发生了根本的改变。通过对这些的学习，我们知道了适合国家社会的制度:才能使我们的祖国繁荣昌盛，而这些历史的学习也是一-种爱国主义教育，爱国主义不仅是对祖国的无比深厚的感情和保卫祖国的英勇精神，而且更表现为是关心祖国的命运和前途，为祖国的前途，为祖国的繁荣富强和进步而奋斗的精神。中国只有强大起来，才会使任何国家都不敢侵略我们，只有社会主义オ能够使中国走向繁荣富强，所以，我们的爱国主义与热爱社会主义就是完全一致的。在今天的中国，热爱祖国就必须热爱社会主义，这是历史发展的客观规律所决定的，是中国人民必然的选择。