The purpose of this book is to introduce the concept of the Multiple Input Multiple Output (MIMO) radio channel, which is an intelligent communication method based upon using multiple antennas. The book opens by explaining MIMO in layman’s terms to help stu- dents and people in industry working in related areas become easily familiarised with the concept. Therefore the structure of the book will be carefully arranged to allow a user to progress steadily through the chapters and understand the fundamental and mathematical principles behind MIMO through the visual and explanatory way in which they will be written. It is the intention that several references will also be provided, leading to further reading in this highly researched technology.
上傳時間： 2020-05-31
上傳用戶：shancjb
Rapid progress in information and communications technology (ICT) induces improved and new telecommunications services and contributes greatly to society in general and to vendors and network and service providers. In addition to existing services such as telephony or leased line services, spread of the Internet, the Internet Protocol (IP) phone, and new communications services like IPTV are making great progress with the development of digital subscriber lines (DSL) and high - speed communications technologies like fi ber to the home (FTTH).
標簽： Telecommunications Networks
上傳時間： 2020-06-01
上傳用戶：shancjb
Recent advances in wireless communication technologies have had a transforma- tive impact on society and have directly contributed to several economic and social aspects of daily life. Increasingly, the untethered exchange of information between devices is becoming a prime requirement for further progress, which is placing an ever greater demand on wireless bandwidth. The ultra wideband (UWB) system marks a major milestone in this progress. Since 2002, when the FCC allowed the unlicensed use of low-power, UWB radio signals in the 3.1–10.6GHz frequency band, there has been significant synergistic advance in this technology at the cir- cuits, architectural and communication systems levels. This technology allows for devices to communicate wirelessly, while coexisting with other users by ensuring that its power density is sufficiently low so that it is perceived as noise to other users.
上傳時間： 2020-06-01
上傳用戶：shancjb
Digital radios have undergone an astonishing evolution in the last century. Born as a set of simple and power-hungry electrical and electromechanical devices for low data rate transmission of telegraph data in the Marconi age, they have transformed, thanks to substantial advances in electronic technology, into a set of small, reliable and sophisticated integrated devices supporting broadband multimedia communications. This, however, would not have been possible unless significant progress had been made in recent decades in the field of signal processing algorithms for baseband and passband signals. In fact, the core of any modern digital radio consists of a set of algorithms running over programmable electronic hardware. This book stems from the research and teaching activities of its co-authors in the field of algorithmic techniques for wireless communications. A huge body of technical literature has accumulated in the last four decades in this area, and an extensive coverage of all its important aspects in a single textbook is impossible. For this reason, we have selected a few important topics and, for ease of reading, organized them into two parts.
標簽： Communications Algorithmic Techniques Wireless
上傳時間： 2020-06-01
上傳用戶：shancjb
The first edition as well as its forerunner of Kuffel and Abdullah published in 1970 and their translations into Japanese and Chinese languages have enjoyed wide international acceptance as basic textbooks in teaching senior under- graduate and postgraduate courses in High-Voltage Engineering. Both texts have also been extensively used by practising engineers engaged in the design and operation of high-voltage equipment. Over the years the authors have received numerous comments from the text’s users with helpful suggestions for improvements. These have been incorporated in the present edition. Major revisions and expansion of several chapters have been made to update the continued progress and developments in high-voltage engineering over the past two decades.
標簽： Engineering Voltage High
上傳時間： 2020-06-07
上傳用戶：shancjb
The continuous progress in modern power device technology is increasingly supported by power-specific modeling methodologies and dedicated simulation tools. These enable the detailed analysis of operational principles on the the device and on the system level; in particular, they allow the designer to perform trade- off studies by investigating the operation of competing design variants in a very early stage of the development process. Furthermore, using predictive computer simulation makes it possible to analyze the device and system behavior not only under regularoperatingconditions, but also at the rim of the safe-operatingarea and beyond of it, where destructive processes occur that limit the lifetime of a power system.
標簽： POWERHVMOS_Devices_Compact_Modeli ng
上傳時間： 2020-06-07
上傳用戶：shancjb
This reference design describes the design of a 3-phase AC induction vector control drive with position encoder coupled to the motor shaft. It is based on Motorola’s DSP56F805 dedicated motor control device. AC induction motors, which contain a cage, are very popular in variable speed drives. They are simple, rugged, inexpensive and available at all power ratings. progress in the field of power electronics and microelectronics enables the application of induction motors for high-performance drives, where traditionally only DC motors were applied. Thanks to sophisticated control methods, AC induction drives offer the same control capabilities as high performance four-quadrant DC drives.
標簽： Reference Designer Manual Phase DRM 023 AC
上傳時間： 2020-06-10
上傳用戶：shancjb
特別好的教程特別好的教程 Research progress in synthesis and modification of polylactic acid Research progress in synthesis and modification of polylactic acid
標簽： 教程
上傳時間： 2021-09-17
上傳用戶：陳浩
This book addresses programmer attitudes, but it’s not some kind of psychology textbook. We’ll investigate many topics, including: Source code presentation Defensive coding techniques How to debug programs effectively Good teamworking skills Managing your source code Take a quick glance through the table of contents to see exactly what’s covered. What is the rationale behind my selection of topics? I’ve been mentor- ing trainee programmers for many years, and these are the topics that have come up time and time again. I’ve also worked in the software factory for long enough to have seen the recurring problems—I address these too. If you can conquer all of these programming demons, you’ll progress from an apprentice coder to a real code craftsman.
標簽： excellent practice writing Craft Code code the of
上傳時間： 2021-11-09
上傳用戶：danix800
VIP專區-嵌入式/單片機編程源碼精選合集系列（144）資源包含以下內容：1. Cypress 68013產品開發原理圖.2. 在SPI 平臺優化好的G.711代碼,保證好用.3. 基于單片機步進電機控制正反轉.4. C環境 TCON T118芯片驅動文件.5. S3C44B0X nFlash ,測試通過.6. 智能門禁系統蓄電池充電原理圖.7. arm嵌入式系統plc22**ssp作spi主機實驗.8. arm嵌入式系統lpc22**ssp作spi從機實驗.9. arm嵌入式系統lpc22**錯誤的喂狗產生中斷源代碼.10. 適用于SED1335的24點陣中文字庫。原來為打印字庫.11. uc－gui方面的開發程序.12. arm_ads 程序原代碼.13. arm_ads 程序調試教程.14. 一個高級培訓班的內部資料,非常寶貴,讀者可以掌握嵌入式基本思路.15. μITRON4.0 source code for ARM.16. vb與PLC的通訊程序 vb與PLC的通訊程序.17. usb鼠標資料,包括詳細的電路原理圖,以及源程序等.18. 做的一個簡易的計算器.19. 此文件為ipod程序.20. 此文檔為twell8816芯片資料.21. C8051F系列單片機開發與C語言編程.22. LPC240-1 詳細介紹了LPC240-1各部分的硬件及其代碼.23. m8 的 文件 原理與手冊.24. 用于s3c2410的spi接口驅動。初學者用一定的參考價值。.25. 完全的TMS320F2812介紹.26. keil C51學習手冊 內涵詳細的介紹.27. 關于c++的繪圖程序 with pictures show the progress of the load ce shown nboot.28. I2C IP.29. 2802 步進電機控制器.30. pci驅動開發介紹.31. 這是一個關于PCI驅動開發的開發文檔資料,里面詳細介紹了開發過程.32. PCI BIOS SPECIFICATION Revision 2.1版本.33. PCI BIOS SPECIFICATION Revision 2.1.34. 這是通道控制用的閘機源碼.35. 控制步進電動機做正反向調速控制.36. 能用串口修改時間的時鐘程序.37. 嵌入式數據庫Berkeley DB-4.5.20源代碼.38. lcd12864點陣液晶屏的測試代碼.39. ULINK制作.40. 嵌入式經典教材初學者很適合.
上傳時間： 2013-07-23
上傳用戶：eeworm
