Device-to-device(D2D) communications are now considered as an integral part of future 5G networks which will enable direct communication between user equipment (UE) without unnecessary routing via the network infrastructure. This architecture will result in higher throughputs than conventional cellular networks, but with the increased potential for co-channel interference induced by randomly located cellular and D2D UEs.
標簽： Device-to-Device Communications Analysis of
上傳時間： 2020-05-26
上傳用戶：shancjb
This book presents, in a unitary and novel perspective, some of the research work the authors have carried out over the last decade, along with several collaborators and students. The roots of this book can be traced back to the design of adaptive sequence detection algorithms for channels with parametric uncertainty. The explosion of turbo codes and iterative decoding around the middle of the Nineties has motivated the design of iterative (turbo and graph-based) detection algorithms.
標簽： Communications Algorithms Detection Wireless for
上傳時間： 2020-05-27
上傳用戶：shancjb
This book is an outgrowth of the pioneering development work done by InterDigital Com- munication Corporation in 3rd Generation TDD WCDMA Technology. Many engineers and managers were involved in this development, which spanned a wide range of tech- nology areas, including system architecture, radio interface, radio modem design, radio resource management and hardware/software implementation. In addition, TDD WCDMA technology had many direct and indirect contributors across the globe in the context of the development of the 3GPP TDD WCDMA Standard.
上傳時間： 2020-06-01
上傳用戶：shancjb
This book is focused on designing and developing Representational State Transfer (REST) platforms in Rails. REST is the architectural style of the Web, consisting of a set of constraints that, applied to components, connectors, and data elements, constitute the wider distributed hypermedia system that we know today: the World Wide Web. There are a few good reasons why it makes more sense to build platforms instead of just products or applications. Platforms are like ecosystems interconnecting different applications, services, users, developers, and partners. Platforms foster innovation through the inputs of their direct collaborators. By providing application programming interfaces (APIs) and software development kits (SDKs), platforms are more customer driven.
標簽： Development Building RESTful Rails
上傳時間： 2020-06-06
上傳用戶：shancjb
歐母龍PLC例程PLC控制器源碼255個合集:1600T俄羅斯壓力機.rar200噸壓機程序 omron 的機子C系列的.rar3MK136舊磨床現程序.rar3電機延時控制啟停.rar5V編碼器信號如何接入CP1H高數計數案例.rar6路搶答器源碼.rar902002 OMRON.rarASCII Generic Protocol Macro Object Code.zipASCII Generic Protocol Macro.zipC3電樞異物吸引.rarCalendar Calculation.zipcarbon.rarCompact Flash Memory Write.zipCounter Multiplex.zipcp1h 高速計數觸發中斷注意點.rarcp1h-x40用在非標飲料線上的程序,有注解.rarCP1H與愛默生溫控模塊的通訊程序.rarCP1L and CP1H EasyModbus FB.zipCPM1A編寫的贊揚15T立式注塑機.rarCPM2A Interupt High Speed Counting Sample.zipCPM2A自身時鐘六個時間段觸發程序.rarCQM1 Host Link Master.zipCQM1H 21的例子程序，有溫度壓力等PID控制。.rarCQMaster.swp.zipCS CJ CP NSJ password set.zipCS1 C Mode Hostlink.zipCS1-CJ1 Floating Point to Fixed Point Conversion for HMI.zipcub.rarCX-Programmer Ver.5 Introduction Guide R120-E1-01..zipCX-Programmer Ver.5 Introduction to Function Blocks Guide R121-E1-01.zipC_Mode_Hostlink.zipDeviceNet Explicit Message Example.zipdieban.rarEasy to use Modbus RTU Master for CP1L CP1H CJ1 CJ2 CS1.zipExample of Using Daylight Saving FB's.zipExample Scale Meter Protocol.zipFB Calculate Day Of Week.zipFB Day light savings function block.zipFB Extract Time Date into SecMin Hr Day Mth Yr.zipFB Scale with parameters.zipGKF1250離心機CXP.rargkf1250離心機cxpgkf離心機omron.rarJH21-200程序.rarLED液壓機.rarlogging+ filewrite.ziplpr-des.rarModbus Protocol Macro Object Code.zipModbus Protocol Macro.zipModbus RTU Sample Code CJ1-SCB.rarModbus TCP Client using FB's.zipOmron CS1 Sequencer.zipOMRON E6CP絕對值編碼器使用實例。編碼器為8位格雷碼輸出.rarOmron Modbus Slave Ladder.zipOmron Plc 變頻一帶三例程.rarOMRON PLC編程示范.raromron--MOV傳送指令.raromron-cs1g-h-cpu42日本機的程序.rarOmron_CJ2_to_AB_EIP_Tag_Datalink_Example.rarOMRON接駁臺.rarOMRON控制2伺服.rarOMRON溫度，壓力模擬量輸入程序.rarOMRON照明設備程序.raromron的PLC案例程序.rarOMRON程序舉例.rarOMRON程序舉例2.rarOMRON紙病分析系統-PLC程序(CJ1G).zipomron脈沖輸出到驅動器的程序.rarPCB 沉銅線程序.rarPID溫度控制的PLC程序設計實例.rarPinstamp.zipPLC Clock adjustment with screen.zipPLC錳鋼程序cpm2a.zipPolls and Writes setpoints to E5CK Process Controller - E5CK.swp.zipPRO9連拉.rarProcess states sequence logics.zipQuadrature Input for Standard CPM1A DC Inputs.zipRandom Number Generator.zipScaling in CJ1 CS1 PLC's.zipSMS - GSM PLC Communications.zipsony 公司 某機臺控制程序.rarStepNext.cpt.zipSTUP Example.zipTemplate for Step-Step Next Sequence.zipToggle Button.zipTracking product on conveyor.zipTXD-RXD Quickstart Programs.zipTXD-RXD Serial Port Handling.zipUseable timer.zipV600-E5CK.zipV700-V720 RFID Protocol Macro.zipVB與OMRON PLC通訊源碼.rarWoodwood Controler Example Protocol Program.zipYH32-315油壓機程序.rar一個CJ1M的程序.rar一個OMRON程序,帶位置控制模塊.rar一個生產線上潤滑控制的小程序.rar一些簡單的cpm1a程序.rar一控三恒壓供水程序.rar三層提升機歐姆龍CQM1H程序.rar三菱400噸和200號沖床程序.rar上海產自動模切機飛達部程序.zip上海獅印全自動啤機程序.rar東芝壓鑄機梯形圖.rar兩步法吹瓶機.rar鄉林剪臺.rar買書的隨書樣例.rar井研磨邊機.rar交通燈注釋全.rar今機立式注塑機程序.rar伺服電機正反轉控制.rar位置控制（旋轉編碼器與PLC）.rar充磁機程序.rar先啟后?！『髥⑾韧！∈吕?rar沖床程序.rar分揀線主機一個CJ1M的分揀線程序下掛CP1H.rar利慧利樂灌裝機程序.rar刮水器停止位置檢查程序.rar力泰翻胚機程序.rar北人04印刷機程序.rar北人LQD10騎馬裝訂程序.rar半自動吹瓶機的程.rar南京印刷機.zip卡板程式.rar壓制機程序（帶解釋，注釋）.rar壓力機控制程序.rar原創液壓機程序帶注釋歐姆龍PLC加信捷文本.rar原點搜索程序.rar雙翻分揀機.rar雙邊機.rar反滲透整套PLC控制.rar臺灣產染色機歐姆龍PLC帶3只IO擴展控制程序.rar臺灣大拉無板.rar啤酒廠酒瓶美容機.rar四川綿陽建豐熱磨工段.rar在用設備程序.rar垂直涂布.rar外端子設計數值.rar大型熱電廠 PLC程序(帶注解).rar大搖動超聲波清洗機.rar大連75密練注釋程序.rar安呼12級.rar富佳扶梯程序.rar對齊度編程?。?rar小車控制程序.rar小車送料”例程.rar廣東鍛壓氣壓沖床程序（80T）有詳細注解.rar廣告牌燈箱.rar微電機刷簧自動組裝程序.rar微粉磚自動送料帶OMRON CQM2A+擴展程序帶注釋.rar意大利進口皮革壓花.rar扎鋼機程序.rar打包機.rar拔蓋機.rar撥碼控制.rar擋磚磨邊機（新1）.rar捷豹空壓機控制程序.rar接木機.rar控制程序例子.rar推掛.rar攻絲機2（新）.rar料位顯示.rar旋轉門控制程序1.rar無協議.rar無心磨床(OMRON系統,帶機械手有詳細注解).rar無線膠裝機歐姆龍程序.zip日本人編的程序 拋光研磨.rar日本成型磨床控制程序（附注釋）歐姆龍CPM1A.rar板坯定厚.rar樣例，有注釋.rar模擬量試驗.rar歐姆龍CJ1M鉻化機程序帶注釋.rar歐姆龍CP1H例程.rar歐姆龍CPM1A的PLC.rar歐姆龍CPM2AH PLC和歐姆龍NTZ觸摸屏編寫的超聲波清洗機程序..rar歐姆龍CPM2AH Host Link通訊程序(發布源碼).rar
上傳時間： 2021-10-22
上傳用戶：
1. Scope ......................................................................................................................................................................... 12. DDR4 SDRAM Package Pinout and Addressing ....................................................................................................... 22.1 DDR4 SDRAM Row for X4,X8 and X16 ................................................................................................................22.2 DDR4 SDRAM Ball Pitch........................................................................................................................................22.3 DDR4 SDRAM Columns for X4,X8 and X16 ..........................................................................................................22.4 DDR4 SDRAM X4/8 Ballout using MO-207......................................................................................................... 22.5 DDR4 SDRAM X16 Ballout using MO-207.............................................................................................................32.6 Pinout Description ..................................................................................................................................................52.7 DDR4 SDRAM Addressing.....................................................................................................................................73. Functional Description ...............................................................................................................................................83.1 Simplified State Diagram ....................................................................................................................................83.2 Basic Functionality..................................................................................................................................................93.3 RESET and Initialization Procedure .....................................................................................................................103.3.1 Power-up Initialization Sequence .............................................................................................................103.3.2 Reset Initialization with Stable Power ......................................................................................................113.4 Register Definition ................................................................................................................................................123.4.1 Programming the mode registers .............................................................................................................123.5 Mode Register ......................................................................................................................................................134. DDR4 SDRAM Command Description and Operation ............................................................................................. 244.1 Command Truth Table ..........................................................................................................................................244.2 CKE Truth Table ...................................................................................................................................................254.3 Burst Length, Type and Order ..............................................................................................................................264.3.1 BL8 Burst order with CRC Enabled .........................................................................................................264.4 DLL-off Mode & DLL on/off Switching procedure ................................................................................................274.4.1 DLL on/off switching procedure ...............................................................................................................274.4.2 DLL “on” to DLL “off” Procedure ..............................................................................................................274.4.3 DLL “off” to DLL “on” Procedure ..............................................................................................................284.5 DLL-off Mode........................................................................................................................................................294.6 Input Clock Frequency Change ............................................................................................................................304.7 Write Leveling.......................................................................................................................................................314.7.1 DRAM setting for write leveling & DRAM termination function in that mode ............................................324.7.2 Procedure Description .............................................................................................................................334.7.3 Write Leveling Mode Exit .........................................................................................................................34
標簽： DDR4
上傳時間： 2022-01-09
上傳用戶：
對某四輪獨立驅動電動汽車輪轂電機進行研究,設計一種永磁無刷直流電機控制器.以STM32F103RBT6芯片為基礎,對電機驅動電路、采樣電路和保護電路分別進行硬件設計與分析;同時,采用模塊化軟件設計方案,對該控制器的軟件系統進行升級.實驗驗證表明:所設計的電機控制器能使電機響應迅速、轉速穩定、無超調,且電動車動力輸出性能良好.A permanent magnet brushless direct current motor controller was designed by studying the hub motor of a four-wheel independent drive electric vehicle.Based on STM32 F103RBT6 chip,the hardware design and analysis of motor drive circuit,sampling circuit and protection circuit were carried out respectively.At the same time,modular software design scheme was adopted to upgrade the software system of the controller.Experimental results show that the designed motor controller can ensure the motor fast response,stable speed,no overshoot,and good power output performances.
上傳時間： 2022-03-26
上傳用戶：qingfengchizhu
隨著光伏發電系統快速發展,以及電動汽車充電樁的普及,傳統的剩余電流保護器無法滿足實際需求。介紹了一款B型剩余電流保護器,采用磁調制剩余電流互感器和零序電流互感器采集剩余電流。根據GB/T 22794—2017標準要求,可識別1 kHz及以下的正弦交流、帶和不帶直流分量的脈動直流、平滑直流等剩余電流信號。經信號調理電路將電壓信號送到單片機進行采集和判斷。通過試驗測試,該樣機在測試精度和速度上均符合國家標準的相關要求。The rapid development of photovoltaic power generation systems and the popularity of electric vehicle charging piles make the traditional residual current protective devices unable to meet the actual demand.This paper proposed a type B residual current protective device,which uses the magnetically modulated residual current transformer and the zero sequence current transformer to acquire the residual current.According to the requirements of GB/T 22794—2017,the type B residual current protective device can detect sinusoidal AC residual current of 1kHz and below 1kHz,pulsating DC residual current with and without DC component,smooth DC residual current and so on.The signal processing circuit sends the voltage signal to the MCU for acquisition and judgment.Through experimental tests,the device meets the relevant requirements of national standards in terms of test accuracy and speed.
標簽： 電流保護器
上傳時間： 2022-03-27
上傳用戶：
LED 線陣顯示裝置, 分為 LED 線性旋轉顯示主機和圖文錄入器兩部分。主機用直流電機帶動由紅綠 LED 組成的線陣旋轉, 同時線陣按照時序依次切換顯示狀態, 在固定區域利用視覺暫留效果形成 16×16 點陣, 用以顯示圖文;圖文錄入器用 HMI 觸控屏作為人機交互界面, 實現圖文錄入和回放功能。主機與圖文錄入器通過無線通信方式進行信息交互,可由圖文錄入器控制主機切換不同工作任務, 以及改變線陣顯示內容。The LED linear array display device is divided into two parts:the one is the main unit used to display content,and the other one is used to input the contents.The main unit is driven by a DC motor to rotate the linear array composed by red and green light emitting diodes.At the same time,the 16×16 dot matrix that switching the display state according to the time sequence on the main unit displays pictures and texts in the fixed area,by using the visual temporary effect.The HMI touch screen is used as human machine interface to realize the function that input and playback pictures and texts.The two parts of the device communicate with each other through wireless communication.The image and text input controller can control the main unit to switch different tasks and change the content of linear array displayed.
標簽： stc12c5a60s2 單片機 led
上傳時間： 2022-03-28
上傳用戶：jiabin
以單片機控制A/D轉換器TLC549為例,對A/D轉換器的主要技術指標進行了分析研究,在Proteus平臺下,完成了A/D轉換電路的構建,采用器件工作時序方式進行程序編寫,借助仿真圖表、虛擬儀器等工具對A/D轉換的數據進行測量并對失調誤差、增益誤差、微分非線性、積分非線性和轉換時間等重要參數進行了詳細分析。結果表明:使用Proteus軟件可對A/D轉換過程進行定性分析,將抽象的A/D轉換器技術指標直觀化、形象化展現出來,有助于學生更好地理解A/D轉換過程。The main technical indicators of A/D converter were analyzed and studied with an example from A/D converter TLC2543 which is controlled by using SCM.It was completed the construction of the A/D converter circuit under the Proteus software.The programming based on the operation sequence of the chip is put forward.With the aid of the simulation tools such as virtual instrument,simulation charts provided by Proteus,the important parameters of circuit such as offset error,gain error,differential nonlinearity(DNL),integral nonlinearity (INL) and conversion time are analyzed detailedly.Simulation results show that the A/D conversion process can be qualitatively analyzed and visualized the abstract indicators of A/D.The system can help students better to understand the SCM conversion process.
上傳時間： 2022-04-04
上傳用戶：
