CSMA / CD simulation code, Gigabit Ethernet previous versions used to compete for a unified approach, in order to decide on the right of media access, which relates to the backoff algorithm. OPNET environment can be achieved through the experience card.
標(biāo)簽： simulation Ethernet approach previous
上傳時(shí)間： 2014-01-05
上傳用戶(hù)：yangbo69
This book is intended to be a complete and useful reference to the unified modeling language (UML) for the developer,architect,project manager,sysetem engineer,programmer,analyst,contracting officer,customer,and anyone else who needs to specify,design,build,or understand complex software system.
標(biāo)簽： reference intended complete modeling
上傳時(shí)間： 2017-09-24
上傳用戶(hù)：eclipse
This book intends to prepare you to define unified Communications (UC) for yourself and then get it to work for you. Each vendor pulls together from its available products a package of features related to voice, data, messaging, and image communications. That’s UC for one vendor, but it’s unlikely to match exactly the UC from another vendor. You need a detailed specification to know what you’ll see installed.
標(biāo)簽： Communications unified VoIP and
上傳時(shí)間： 2020-06-01
上傳用戶(hù)：shancjb
OPC UA作為opc規(guī)范的新方向，使得自動(dòng)化系統(tǒng)構(gòu)架更加開(kāi)放、便捷。-OPC unified Architecture.pdf
標(biāo)簽： OPC_unified_Architecture
上傳時(shí)間： 2013-06-16
上傳用戶(hù)：zsjinju
Bootloader是微處理器上電時(shí)運(yùn)行的第一段代碼，它可以通過(guò)通信接口實(shí)現(xiàn)對(duì)微處理器內(nèi)部應(yīng)用程序的更新升級(jí)，為網(wǎng)絡(luò)化嵌入式產(chǎn)品的應(yīng)用程序升級(jí)帶來(lái)極大的便利。由于目前沒(méi)有統(tǒng)一嵌入式系統(tǒng)的Bootloader。基于NEC 78K0系列單片機(jī)自編程原理，設(shè)計(jì)出一個(gè)適用于78K0/Fx2系列單片機(jī)的Bootloader，并能夠通過(guò)單片機(jī)串口在線(xiàn)升級(jí)應(yīng)用程序。 Abstract: Bootloader is the first piece of code executed after microprocessor startup. It makes the embedded product’s firmware update conveniently through communication interface. However， no unified bootloader is available for all kinds of microprocessor products. Based on the principle of self-programming NEC 78K0s’ series， a useful Bootloader which is suitable for 78K0/Fx2s’ series MCU is designed，the design can update the application through serial ports.
標(biāo)簽： Bootloader MCU 自編程
上傳時(shí)間： 2013-10-26
上傳用戶(hù)：fang2010
Xilinx Next Generation 28 nm FPGA Technology Overview Xilinx has chosen 28 nm high-κ metal gate (HKMG) highperformance,low-power process technology and combined it with a new unified ASMBL™ architecture to create a new generation of FPGAs that offer lower power and higher performance. These devices enable unprecedented levels of integration and bandwidth and provide system architects and designers a fully programmable alternative to ASSPs and ASICs.
上傳時(shí)間： 2014-12-28
上傳用戶(hù)：zhang97080564
為了能夠滿(mǎn)足基站易于選址、優(yōu)質(zhì)快速的建站要求和易維護(hù)、低成本、高可靠的運(yùn)行要求，本文對(duì)以方艙來(lái)實(shí)現(xiàn)一體化結(jié)構(gòu)基站做出一番探討。從系統(tǒng)設(shè)計(jì)的觀(guān)點(diǎn)闡述了移動(dòng)通信高性能基站天線(xiàn)設(shè)計(jì)的幾個(gè)關(guān)鍵問(wèn)題，介紹了智能天線(xiàn)技術(shù)在基站中的應(yīng)用，并且用HFSS軟件仿真了一種新型的對(duì)稱(chēng)陣子天線(xiàn)，該天線(xiàn)駐波比小于2的帶寬可以達(dá)到60%，具有良好的寬頻帶特性。 Abstract: In order to meet the station construction requirement of easy site selection and fast base station， and meet the operational requirement of easy maintenance， low cost and high reliability， this paper discussed the unified architecture base station using shelter. Several key problems of high performance mobile communication base station antenna were illustrated from the view of system design， the application of smart antenna in base station was also introduced. And a novel dipole antenna was simulated by using HFSS， the VSWR of the antenna is less than 2， and the bandwidth was reach to 60%. So it has good broadband properties.
標(biāo)簽： 智能天線(xiàn) 基站 中的應(yīng)用
上傳時(shí)間： 2013-11-20
上傳用戶(hù)：linlin
Xilinx Next Generation 28 nm FPGA Technology Overview Xilinx has chosen 28 nm high-κ metal gate (HKMG) highperformance,low-power process technology and combined it with a new unified ASMBL™ architecture to create a new generation of FPGAs that offer lower power and higher performance. These devices enable unprecedented levels of integration and bandwidth and provide system architects and designers a fully programmable alternative to ASSPs and ASICs.
上傳時(shí)間： 2013-12-07
上傳用戶(hù)：bruce
Person-to-person realtime IP communications, like presence, VoIP and video applications, offer clear benefits for the enterprise as time- and money-savers. unified functionality is now available, where all of the above are integrated into one streamlined application and interconnect with other networks. This creates a very important business tool and usage is increasing.
標(biāo)簽： Person-to-person communications applications realtime
上傳時(shí)間： 2015-06-28
上傳用戶(hù)：維子哥哥
開(kāi)發(fā)J2EE解決方案的八個(gè)步驟 Java 2企業(yè)版本（The Java 2 Enterprise Edition，J2EE）平臺(tái)由4個(gè)主要的部分組成：規(guī)范，參考實(shí)現(xiàn)，兼容性測(cè)試包和BluePrints程序。BluePrints描述了一個(gè)分布式組件體系的最佳練習(xí)和設(shè)計(jì)指導(dǎo)方針。這篇文章介紹了一個(gè)由八個(gè)步驟組成的J2EE開(kāi)發(fā)方法論，該方法是基于Rational unified Process和BluePrints應(yīng)用例子的。通過(guò)這篇文章，你將可以更好地理解J2EE體系的許多重要主題，并且可以應(yīng)用這些知識(shí)來(lái)擴(kuò)展和修改這個(gè)簡(jiǎn)單的方法論，從而解決各種特定的商業(yè)問(wèn)題。
標(biāo)簽： Java Enterprise Edition J2EE
上傳時(shí)間： 2014-12-04
上傳用戶(hù)：wpwpwlxwlx
蟲(chóng)蟲(chóng)下載站版權(quán)所有 京ICP備2021023401號(hào)-1
