Abstract: The process of designing a radio system can be complex and often involves many project tradeoffs. Witha little insight, balancing these various characteristics can make the job of designing a radio system easier. Thistutorial explores these tradeoffs and provides details to consider for various radio applications. With a focus on theindustrial, scientific, medical (ISM) bands, the subjects of frequency selection, one-way versus two-way systems,modulation techniques, cost, antenna options, power-supply influences, effects on range, and protocol selectionare explored.
標簽： 無線
上傳時間： 2013-12-13
上傳用戶：eastgan
Abstract: The reality of modern, small form-factor ceramic capacitors is a good reminder to always readthe data sheet. This tutorial explains how ceramic capacitor type designations, such as X7R and Y5V,imply nothing about voltage coefficients. Engineers must check the data to know, really know, how aspecific capacitor will perform under voltage.
上傳時間： 2013-11-04
上傳用戶：梧桐
(1 . Higher Educati on Admissi on Committee Office of L ianyungang,L ianyungang 222006, China 2 . Modern Educati on Technique Center, Huaihai I nstitute of Technol ogy, L ianyungang 222005, China) Abstract: The outbreak ofARP cheating virus interferes with the nor mal functi oning of LAN. On the basis of thoroughly und standing of the p rinci p les, this paper analyzes the p rinci p les, pattern and classificati ons ofARP in details . And it also discu the tactics t o take strict p recauti ons ofARP fr om t wo sides— — —the administrati on ofLAN and Client Host . The pur pose of the cussi on is t o guarantee the normal running of LAN users . Key words: virus p rinci p les LAN client host
標簽： ianyungang Committee Educati Admissi
上傳時間： 2013-12-23
上傳用戶：zhangyigenius
基于DSP28335的永磁同步電機調速系統設計摘要（中英文） 本控制系統的設計是為了實現基于TMS320F28335的永磁同步電動機的調速系統，并把它引用到全電動注塑機當中。本系統使用SVPWM的控制方法，通過采樣電機電流和旋轉變壓器的位置信息，實現速度、電流雙閉環控制。通過TMS320F28335的硬件浮點處理核心，實現應用于永磁同步電機的浮點算法，去取代過去的定點算法，提高代碼效率。 Abstract: The control system is designed to realize TMS320F28335 based on the permanent magnet synchronous motor speed control system, and put it to quoting all electric of injection molding machine. The ystem of the control method used SVPWM, through the sampling motor current and rotating transformer 1. 引言1.1 設計背景及目的 本永磁同步電機調速系統是全電動注塑機的其中一個應用部分。全電動注塑機憑借著其節約能源、清潔、噪聲少、速度控制效果好、精度高、可重復性高、成本低等眾多優點，成為了當下高端注塑機發展的一個方向。 全電動注塑機的所有運動機構都采用交流伺服電動機驅動，一個穩定高效的永磁同步電動機驅動方案成為了全電動注塑機性能的一個總要部分。本次設計以適用于全電動注塑機的永磁同步電動機控制系統為目標進行設計，采用TI公司的TMS320F28335作為控制核心。憑借TMS320F28335高速的運算能力，適用于電動機控制的各種外設，以及TMS320F283XX特有的硬件浮點運算能力，進行永磁同步電動機的調速控制系統的設計。
上傳時間： 2022-05-08
上傳用戶：
At the heart of Java technology lies the Java virtual machine--the abstract computer on which all Java programs run. Although the name "Java" is generally used to refer to the Java programming language, there is more to Java than the language. The Java virtual machine, Java API, and Java class file work together with the language to make Java programs run.
標簽： the Java technology abstract
上傳時間： 2013-12-14
上傳用戶：離殤
The core of Java(TM) technology, the Java virtual machine is an abstract computing machine that enables the Java(TM) platform to host applications on any computer or operating system without rewriting or recompiling. Anyone interested in designing a language or writing a compiler for the Java virtual machine must have an in-depth understanding of its binary class format and instruction set. If you are programming with the Java programming language, knowledge of the Java virtual machine will give you valuable insight into the Java platform s security capabilities and cross-platform portability. It will increase your understanding of the Java programming language, enabling you to improve the security and performance of your programs.
標簽： machine Java technology computing
上傳時間： 2016-05-03
上傳用戶：zhenyushaw
Abstract：This article elaborats the RFID system，multianalysised the concrete function of RFID middleware，and proposed a kind of RFID data transmission design model with news transmission mechanism，for realizing data transmission more effectively， RFID data transmission design model with news transmission mechanism，for realizing data transmission more effectively，
標簽： elaborats Abstract article system
上傳時間： 2014-01-02
上傳用戶：yd19890720
Abstract：It惴 described systematically the architecture and function of the software of Railway Auto-ticketing System as well as its charac— ter~tic and demand。Analysized the 8oftware middleware and messaged oriented middleware(MOM)，discussed the feasibility of the app~cation 0f JWMQ in the Railway Auto-ticketing System．
標簽： systematically architecture described the
上傳時間： 2016-05-14
上傳用戶：JasonC
Abstract Based on the demand analysis of the RFID middleware，it suggests how to develop the RFID middle— ware，including the functionality and the mechanism of the event handle，and prospects the future of the RFID mid— dleware．
標簽： middleware the Abstract analysis
上傳時間： 2013-12-21
上傳用戶：qilin
Abstract: This thesis describes the incremental development and main features of a synthetic multi-agent system called UvA Trilearn 2001. UvA Trilearn 2001 is a robotic soccer simulation team that consists of eleven autonomous software agents. It operates in a physical soccer simulation system called soccer server which enables teams of autonomous software agents to play a game of soccer against each other.
標簽： incremental development describes synthetic
上傳時間： 2016-07-25
上傳用戶：zaizaibang
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