The goal of this book is to provide a concise but lucid explanation and deriva- tion of the fundamentals of spread-spectrum communication systems. Although spread-spectrum communication is a staple topic in textbooks on digital com- munication, its treatment is usually cursory, and the subject warrants a more intensive exposition. Originally adopted in military networks as a means of ensuring secure communication when confronted with the threats of jamming and interception, spread-spectrum systems are now the core of commercial ap- plications such as mobile cellular and satellite communication.
标签： Principles Spectrum Spread of
上传时间： 2020-05-31
上传用户：shancjb
The goal of this book is to provide a concise but lucid explanation and deriva- tion of the fundamentals of spread-spectrum communication systems. Although spread-spectrum communication is a staple topic in textbooks on digital com- munication, its treatment is usually cursory, and the subject warrants a more intensive exposition. Originally adopted in military networks as a means of ensuring secure communication when confronted with the threats of jamming and interception, spread-spectrum systems are now the core of commercial ap- plications such as mobile cellular and satellite communication.
标签： Spread-Spectrum Communication Systems 1st
上传时间： 2020-06-01
上传用户：shancjb
The first practical examples of mobile communications were used in many countries like the USA, the UK and Germany in military services, and played a significant role in the First World War to transfer important information from the front to headquarters to take further actions. Good and secure wireless communications were an important need for all military services – army, navy and air force. In this respect, the Second World War was a big experimental battlefield for the development and evolution of mobile radio. It was in the interests of governments that after the Second World War the military investment should be paid back by civilian use, and all western European countries started their so-called first generation of mobile communication networks.
标签： Multimedia Business Mobile The
上传时间： 2020-06-01
上传用户：shancjb
The term “ smart grid ” defi nes a self - healing network equipped with dynamic optimiza- tion techniques that use real - time measurements to minimize network losses, maintain voltage levels, increase reliability, and improve asset management. The operational data collected by the smart grid and its sub - systems will allow system operators to rapidly identify the best strategy to secure against attacks, vulnerability, and so on, caused by various contingencies. However, the smart grid fi rst depends upon identifying and researching key performance measures, designing and testing appropriate tools, and developing the proper education curriculum to equip current and future personnel with the knowledge and skills for deployment of this highly advanced system.
上传时间： 2020-06-07
上传用户：shancjb
The electrical power grid is often referred to as one of the most complex man- made systems on Earth. Its importance to all aspects of our daily lives, economic stability, and national security cannot be overstated, and the need for an updated, secure, resilient, and smarter power grid infrastructure is increasingly recognized and supported by policy makers and market forces.
上传时间： 2020-06-07
上传用户：shancjb
Sensors are points ofcontact betweenthe material world ofatoms, mass, andenergy and the seemingly immaterial world of information, computation, and cognition. Linking these two domains more tightly yields all sorts of practical benefits, such as improvedinputdevicesforcomputers,moreeffectivemedicaldevices(implantedor worn), more precise agricultural operations, better monitored buildings or bridges, more secure payment systems, and more reliable sensor–actuator control systems. There are many settings in which tighter coupling between digital and physical planes can enhance safety, security, performance, and reliability.
标签： Computational RFID
上传时间： 2020-06-08
上传用户：shancjb
If the space around us could adapt to our needs and intentions, then our lives would be much simpler. We would have to spend less time on our daily chores, we would be more productive and, hopefully, we would live in a less worrisome and, most likely, more secure world
标签： Ambient_Intelligence a_novel_paradigm
上传时间： 2020-06-10
上传用户：shancjb
全网最全的autojs列子，有一千六百多的脚本文件,脚本内容包含：几十种类型的UI脚本，抖音、QQ、微信、陌陌、支付宝等自动化操作的脚本、还有部分协议列表，HTTP协议(POST、GET)上传下载，接码模块，百度文字识别api模块，文件操作模块：txt文本读一行删一行，等等其他例子QQ语音红包.jsqq语音红包，没加悬浮窗，我觉得自己用脚本引擎会好点.jsQQ语音输入(Tim版)(1).jsQQ语音输入(Tim版).jsQQ资料赞.jsqq轰炸机(1).jsqq轰炸机.jsQQ选图涂鸦.jsqq顺序点赞脚本.jsQQ，微信聊天辅助脚本(文本分割填充字符) v2.jsQQ，微信聊天辅助脚本(文本分割填充字符).jsqtiao.jsrawWindow求解.jsrelationship.jsrhinoneteasecloudmusic.jsRobot.jsROOT权限启动无障碍服务.jsRSA.jsscript.jsscroll的使用.jssecure.jssetting.jssha256.jsshell开关飞行模式.jsshuabaoviod.jsSMSCODE.jsSmsCodeExtract.jssojson.com.jssoul_灵魂匹配.jsspinner例子.jsSqlDatabase2.jsss.jsstart(2).jssun_rise&set.jssurfaceView(简单示例).jsSwitch控件.jstcp连接客户端.jste.jstest(1).jstest(2).jstest(3).jstest(4).jstest.jstestTouch.jstestyinhe.jsTheWolf_API.jstoast图片加文字.jstoast替代函数.jstranslate.jsTrun(翻翻乐).jsts-00-dist.jsTS微信跳一跳满分(10000)飞速版.jsts跳一跳r9s最新版.jsTS跳一跳全机型通用版(2).jsts跳一跳全机型通用版(3).jsts跳一跳全机型通用版.jsTS跳一跳脚本正确显示方式（支持root）.jsTS跳一跳自动.jsTS跳一跳过检测.jstt.jsTTS(1).jstts.jstts2.jstts3.jsTTS抢语音红包，作者A酷安(?????)----锦，详细使用看代码注释.jstxt.jsuc答题.jsui 悬浮窗动画+滑动界面.jsUI(2).jsUI.jsuitest - 副本.jsui。.jsui下对话框文件选择器(1).jsui中的延时除了多线程有别的办法吗.jsui保存控件属性3.jsUI全选.jsUI切换.jsui列子.jsui右下角展开按钮.jsui多界面.jsui属性(1).jsui开关控件(1).jsui开关控件.jsUI文件选择.jsUI显示日志.jsUI画时钟作者xxoo.jsui相对布局.jsUI示例(支付UI).jsui示例app下方tabs.jsui示例下方tabs(1.0.0-1 修复宽度不适配问题).jsUI脚本使用无障碍的最佳实践.jsUI轮播图.jsui选择文件.jsUI验证码（有BUG）.jsuki_0.jsUki消息交互式回复.jsUnlock.jsUntitled-1.jsuntitled.jsUTF.jsvip视频解析2.1.jsvscode连接不上手机解决办法.jsWannaCry(仅为娱乐).jsWeather.jswebScript.jsWebViewClient的使用方法.jswebViewUA切换3.jswebView填充表单加alert.jsWebView多页面浏览(1).jsWebView多页面浏览.jswebView提取图片地址并加载.jswebView获取图片地址.jswebview获取网页原图.jswebview获取网页原图保存.jswebView输入关键词搜索.jsweb拦截修改.jsWeChat.jsWechatJumpingAI(2).jsWechatJumpingAI(3).jswechatjumpingai(4).jsWechatJumpingAI.jswife紧急掉线（autojs破解版专用）.js.jswifi设置代理(未完成).js.js
标签： autojs
上传时间： 2021-11-06
上传用户：
1:打开J-Flash ARM后,首先点击File-OpenProject...,从中选择STM32F103RB.jflash。(例子芯片,直接在提示的目录下找) 2.点击File-Open data file...选择要烧录的可执行文件(.hex 或者 .bin) 3:options-project settings 在里面配置cpu型号,下载方式 4: 选择烧录文件后,点击Target-connect,链接一下硬件是否通。如果能够连接成功会了LOG窗口最后一行显示“Connected successfully”。5:按F3擦除芯片。6.按F5键将程序写入芯片。7.硬件链接上之后，点击Target-secure chip防止程序被恶意读出。如果您的芯片用于调试，不要执行本步骤。
标签： J-Flash
上传时间： 2022-06-22
上传用户：kingwide
nRF52832 secure DFU详细步骤 SDK1552832 SDK15 DFU升级笔记,本人整个操作一步一步记录下来的，写文档配套重新安装软件就花了2天时间
上传时间： 2022-07-06
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