以單片機控制A/D轉(zhuǎn)換器TLC549為例,對A/D轉(zhuǎn)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(zhuǎn)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(zhuǎn)換的數(shù)據(jù)進行測量并對失調(diào)誤差、增益誤差、微分非線性、積分非線性和轉(zhuǎn)換時間等重要參數(shù)進行了詳細分析。結(jié)果表明:使用Proteus軟件可對A/D轉(zhuǎn)換過程進行定性分析,將抽象的A/D轉(zhuǎn)換器技術指標直觀化、形象化展現(xiàn)出來,有助于學生更好地理解A/D轉(zhuǎn)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.
標簽： proteus 單片機 模數(shù)轉(zhuǎn)換
上傳時間： 2022-04-04
上傳用戶：
搶答器是一種智力競賽常用的器件,搶答器的設計方法千差萬別,文章利用常用的數(shù)字電子器件,設計了八路搶答器電路的設計、仿真及實現(xiàn)的全過程,提出兩種可行的設計方案:方案1采用74ls373實現(xiàn)電路鎖存,74ls148實現(xiàn)電路編碼,74ls74及數(shù)碼管實現(xiàn)電路顯示;方案二采用CD4511BCN和LMC555CM集成電路及數(shù)碼管實現(xiàn)搶答器的控制和顯示。本文設計用的器件簡單,容易理解,適用于初學電子技術的人員。Answer scrambler is a common device in intelligence competition, and its design methods vary greatly. This paper designs the whole Process of design, simulation and Realization of the circuit of eight-way answer scrambler by using common digital electronic devices, and puts forward two feasible design schemes: scheme 1 uses 74 ls373 to realize circuit latching, 74 ls148 to realize circuit coding,74 ls74 and digital tube to realize circuit. The second scheme uses CD4511 BCN, LMC555 CM integrated circuit and digital tube to control and display the answerer. The device designed in this paper is simple and easy to understand, and it is suitable for the beginners of electronic technology.
標簽： 搶答器
上傳時間： 2022-04-05
上傳用戶：
應用無跡卡爾曼濾波算法（UKF）進行鋰電池的SOC估計,采用Thevenin二階RC等效電路模型,對HPPC電池脈沖充放電實驗數(shù)據(jù)進行Matlab處理,得到較為準確的模型.通過在Matlab中編寫算法程序,對不同工況的估計值與實際值進行誤差估算及對比分析,通過此算法進行SOC估計,得到該算法可有效降低系統(tǒng)誤差并糾正SOC的初值偏差.The non trace Calman filter （UKF） is applied to the SOC estimation of lithium battery. The Thevenin two order RC equivalent circuit model is used to Process the HPPC battery pulse charge discharge experimental data by Matlab Processing, and a more accurate model is obtained. By writing algorithm program in Matlab, the error estimation and comparison analysis of the estimated value and actual value of different states are carried out, and the SOC estimation is carried out by this algorithm. The algorithm can effectively reduce the system error and correct the initial value deviation of the SOC.
標簽： 卡爾曼濾波
上傳時間： 2022-05-03
上傳用戶：默默
這是一本英文版的MPC的MATLAB教程，講這一塊的資料太少了，故上傳一本。MPC is one of the few areas that has received on-going interest from researchers in both the industrial and cademic communities.Four major aspects of model predictive control make the design methodology attractive to both practitioners and academics.This is particularly attractive to industry where tight profit margins and limits on the Process operation are inevitably present. The third aspect is the ability to perform on-line Process optimization. The fourth aspect is the simplicity of the design framework in handling all these complex issues.
標簽： 模型預測控制
上傳時間： 2022-05-05
上傳用戶：zhanglei193
將Process插件裝入spss軟件中，可實現(xiàn)處理數(shù)據(jù)的中介、調(diào)節(jié)效應，操作簡單快捷，結(jié)果也很好分析。
上傳時間： 2022-06-17
上傳用戶：
RX-8801 SA Features built-in 32.768 kHz DTCXO, High Stability Supports l'C-Bus's high speed mode (400 kHz)Alarm interrupt function for day, date, hour, and minute settings Fixed-cycle timer interrupt function Time update interrupt function32.768 kHz output with OE function Auto correction of leap years Wide interface voltage range: 2.2 V to 5.5 V Wide time-keeping voltage range:1.8 V to 5.5 V Low current consumption: 0.84A/3V (Typ.)is an IC bus interface-compliant real-time clock which includes a 32.768 kHz DTCXO In addition to providing a calendar (year, month, date, day, hour, minute, second) function and a clock counter function, this module provides an abundance of other functions including an alarm function, fixed-cycle timer unction, time update interrupt function, and 32.768 kHz output function.The devices in this module are fabricated via a C-MOS Process for low current consumption, which enables ong-term battery back-up.
上傳時間： 2022-06-17
上傳用戶：
Sentaurus TCAD全面繼承了Tsuprem4，Medici和ISE-TCAD的特點和優(yōu)勢，它可以用來模擬集成器件的工藝制程，器件物理特性和互連線特性等。Sentaurus TCAD提供全面的產(chǎn)品套件，其中包括Sentaurus Workbench, Ligament, Sentaurus Process, Sentaurus Structure Editor, Mesh Noffset3D, Sentaurus Device, Tecplot SV Inspect, Advanced Calibration等等。Sentaurus Process和Sentaurus Device可以支持的仿真器件類型非常廣泛，包括CMOS，功率器件，存儲器，圖像傳感器，太陽能電池，和模擬/射頻器件。sentaurus TCAD還提供互連建模和參數(shù)提取工具，為優(yōu)化芯片性能提供關鍵的寄生參數(shù)信息。
上傳時間： 2022-06-30
上傳用戶：shjgzh
SPSS Process 2.0插件，可用于中介、 調(diào)節(jié)作用分析。
標簽： spss插件
上傳時間： 2022-07-01
上傳用戶：XuVshu
PrefaceDuring the past years, there has been a quickly rising interest in radio access technologies for providingmobile as well as nomadic and fixed services for voice, video, and data. The difference indesign, implementation, and use between telecom and datacom technologies is also becoming moreblurred. One example is cellular technologies from the telecom world being used for broadband dataand wireless LAN from the datacom world being used for voice-over IP.Today, the most widespread radio access technology for mobile communication is digital cellular,with the number of users passing 5 billion by 2010, which is more than half of the world’s population.It has emerged from early deployments of an expensive voice service for a few car-borne users,to today’s widespread use of mobile-communication devices that provide a range of mobile servicesand often include camera, MP3 player, and PDA functions. With this widespread use and increasinginterest in mobile communication, a continuing evolution ahead is foreseen.This book describes LTE, developed in 3GPP (Third Generation Partnership Project) and providingtrue 4G broadband mobile access, starting from the first version in release 8 and through the continuingevolution to release 10, the latest version of LTE. Release 10, also known as LTE-Advanced,is of particular interest as it is the major technology approved by the ITU as fulfilling the IMTAdvancedrequirements. The description in this book is based on LTE release 10 and thus provides acomplete description of the LTE-Advanced radio access from the bottom up.Chapter 1 gives the background to LTE and its evolution, looking also at the different standardsbodies and organizations involved in the Process of defining 4G. It also gives a discussion of the reasonsand driving forces behind the evolution.Chapters 2–6 provide a deeper insight into some of the technologies that are part of LTE and itsevolution. Because of its generic nature, these chapters can be used as a background not only for LTEas described in this book, but also for readers who want to understand the technology behind othersystems, such as WCDMA/HSPA, WiMAX, and CDMA2000.Chapters 7–17 constitute the main part of the book. As a start, an introductory technical overviewof LTE is given, where the most important technology components are introduced based onthe generic technologies described in previous chapters. The following chapters provide a detaileddescription of the protocol structure, the downlink and uplink transmission schemes, and the associatedmechanisms for scheduling, retransmission and interference handling. Broadcast operation andrelaying are also described. This is followed by a discussion of the spectrum flexibility and the associated
上傳時間： 2022-07-08
上傳用戶：
Overview The MT7628 router-on-a-chip includes an 802.11n MAC and baseband,a 2.4 GHz radio and FEM,a 575/580MHz MIPS? 24K% CPU core,a 5-port 10/100 fast ethernet switch. The MT7628 includes everything needed to build an AP router from a single chip. The embedded high performance CPU can Process advanced applications effortlessly, such as routing, security and VolP. The MT7628 also includes a selection of interfaces to support a variety of applications, such as a USB port for accessing external storage.Features· Embedded MIPS24KEc(575/580 MHz) with 64KBl-Cache and 32 KB D-Cache·2T2R 2.4 GHz with 300 Mbps PHY data rate· Legacy 802.11b/g and HT 802.11n modes·20/40 MHz channel bandwidth· Reverse Data Grant(RDG)· Maximal Ratio Combining(MRC)· Space Time Block Coding(STBC)· MCM 8 Mbytes DDR1 KGD(MT7628KN)
標簽： mt7628
上傳時間： 2022-07-18
上傳用戶：
