Coaxial feed structures are widely used in ultra-wide band antennas . This paper modeled the characteristic of the monopole antenna feeded by coaxial line by FDTD in the time-domiain,which showes that . Firstly, it introduced the theory of the arithmetic and the particularly realization in the calculation then it described the use in the time-domain finally it analysed several characteristics of the monopole antenna. The arithmetic used in the microstrip antenna is also a quick and economical way to design the antenna.
标签： structures ultra-wide antennas Coaxial
上传时间： 2016-06-28
上传用户：朗朗乾坤
GNU ccAudio2 is a stand-alone portable C++ class framework for manipulating audio data. It has existed for some time as GNU GPL licensed package and has most recently been designated a GNU package. It is commonly used in GNU Bayonne.
标签： manipulating stand-alone framework ccAudio2
上传时间： 2013-12-28
上传用户：sjyy1001
This handbook is a concise guide to architecting, designing, and building J2EE applications. It guides technical architects through the entire J2EE project, including identifying business requirements, performing use-case analysis, doing object and data modeling, and leading a development team through construction. Whether you are about to architect your first J2EE application or are looking for ways to keep your projects on-time and on-budget, you will refer to this handbook again and again.
标签： architecting applications designing handbook
上传时间： 2014-08-06
上传用户：xuan‘nian
In this book, you will acquire a comprehensive understanding of GIMP Toolkit (GTK+) that can help you to become a proficient graphical programmer. Before continuing, you should be aware that this book is aimed at C programmers, so we will jump right into using GTK+. Time will not be spent covering information you already know.
标签： comprehensive understanding acquire Toolkit
上传时间： 2014-01-22
上传用户：Miyuki
Samsung S3C24xx SD/MMC 驱动 This a MMC/SD driver for the Samsung S3C24xx SD/MMC controller, originally developed years ago by Thomas Kleffel <tk@maintech.de>. Due to time constraints, he had no time to further maintain the driver and follow the mainline Linux changes in the SD/MMC stack.
标签： Samsung MMC controller C24
上传时间： 2013-12-17
上传用户：hphh
一个linux进程管理器,具有以下功能: 管理系统的进程， 包括系统中进程的ID，owner ID, effective user ID、 进程之间的关系、各个进程占用的内存大小、进程的状态； 列出各个进程使用的文件描述符，以及它们打开的文件； 列出各个进程当前的信号使用情况， 包括各个阻塞的信号，各个信号的处理（如采用的哪一种处理方式，如采用了Catch function，给出Catch Function的地址或名称）； 能对某一进程进行挂起、暂停、终止等操作。统计各个进程的运行时间， 包括system time,user time 与clock(即从开始至终止时间)。 给出各个进程对应的可执行文件名，owner名称，effective名称。 采用图形化界面。 实时统计系统cpu和内存状况
上传时间： 2016-07-16
上传用户：lindor
If you re like me, you re excited by what people do with template metaprogramming (TMP) but are frustrated at the lack of clear guidance and powerful tools. Well, this is the book we ve been waiting for. With help from the excellent Boost Metaprogramming Library, David and Aleksey take TMP from the laboratory to the workplace with readable prose and practical examples, showing that "compile-time STL" is as able as its runtime counterpart. Serving as a tutorial as well as a handbook for experts, this is the book on C++ template metaprogramming."Chuck Allison, Editor, The C++ Source
标签： metaprogramming you template excited
上传时间： 2016-07-20
上传用户：gundamwzc
ofdm信道特性 Channel transmission simulator Channel transmission simulator ％ ％ inputs: ％ sig2 - noise variance ％ Mt - number of Tx antennas ％ Mr - number of Rx antennas ％ x - vector of complex input symbols (for MIMO, this is a matrix, where each column ％ is the value of the antenna outputs at a single time instance) ％ H - frequency selective channel - represented in block-Toeplitz form for MIMO transmission ％ N - number of symbols transmitted in OFDM frame ％ ％ outputs: ％ y - vector of channel outputs (matrix for MIMO again, just like x matrix) ％ create noise vector sequence (each row is a different antenna, each column is a ％ different time index) note: noise is spatially and temporally white
标签： transmission simulator Channel inputs
上传时间： 2016-07-22
上传用户：kelimu
The Little Green BATS is the first and so far only Dutch team in the 3D simulation league. We are a group of graduate students from the department of AI at the University of Groningen, The Netherlands. Our team name is derived from the fact that the first 3D agents in the league were balls and from the very philosophical observation that Balls Are Truly Spheres (BATS). This abbreviation reminded us of our favorite song Little Green Bag by The George Baker Selection and so the whole team name was born. We entered the competition for the first time at the 10th edition of RoboCup at Bremen, Germany. unfortunately our hard work didn t pay off that time: already in the second round we got eliminated. However, after this we had a good base to build upon and the good time we had at the event and the nice community inspired us to continue and work hard for another year. This turned out to be defiantly worth it, because in 2007 in Atlanta we managed to become vice world champions!
标签： simulation the Little league
上传时间： 2014-12-07
上传用户：youlongjian0
The task of clustering Web sessions is to group Web sessions based on similarity and consists of maximizing the intra- group similarity while minimizing the inter-group similarity． The first and foremost question needed to be considered in clustering W b sessions is how to measure the similarity between Web sessions．However．there are many shortcomings in traditiona1 measurements．This paper introduces a new method for measuring similarities between Web pages that takes into account not only the URL but also the viewing time of the visited web page．Yhen we give a new method to measure the similarity of Web sessions using sequence alignment and the similarity of W eb page access in detail Experiments have proved that our method is valid and e币cient．
标签： sessions clustering similarity Web
上传时间： 2014-01-11
上传用户：songrui
