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Description: Software for Low Density Parity Check Codes Radford M. Neal Version of 2006-02-08. This collection of programs and modules, written in C, is intended to support research and education concerning Low Density Parity Check (LDPC) codes. (Note, however, that the copyright notice no longer restricts use to these purposes). These codes were invented by Robert Gallager in the early 1960's, and re-invented and shown to have very good performance by David MacKay and myself in the mid-1990's. The decoding algorithm for LDPC codes is related to that used for Turbo codes, and to probabilistic inference methods used in other fields. Variations on LDPC and Turbo codes are currently the best practical codes known, in terms of their ability to transmit data at rates approaching channel capacity with very low error probability.
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Size: 405064 |
Author: netor4you@yahoo.com |
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Description: 通过源码学习，如何做代理服务器 及应用
-Forum on the principle of frequent discussion on P2P, but the discussion to the discussion, there is very little substance produced (source code). Oh, here on my own implementation of a source code to illustrate the principle of UDP through NAT. First of all, to introduce some basic concepts: NAT (Network Address Translators), Network Address Translation: NAT IP addresses are becoming more and more scarce in the circumstances, it is the main purpose of reuse in order to be able to address. NAT is divided into two categories, the basic NAT and NAPT (Network Address/Port Translator). Most are running at start NAT router on a function module. The first to propose that the basic NAT, it is the emergence of truth based on the following: a private network (domain) of nodes required only a few nodes and external network connection (Ha ha, this is up at mid-century and raised 90) . Well, this subnet in a matter of fact only a small number of nodes required of the world s only IP addresses
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Size: 359810 |
Author: rotk2012 |
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Description: 有关中秋节国庆节的一些flash源文件素材-Mid-Autumn Festival on the National Day of the number of flash source file material
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Size: 3088384 |
Author: liuluhang |
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Description: 中秋节Banner素材打包下载
马上中秋节了，特意找来了一些中秋素材给大家，都是没有任何标识的，直接可用，祝各位中秋团员幸福！-Mid-Autumn Festival Banner packing material immediately download the Mid-Autumn Festival, and specifically the Mid-Autumn Festival and got some material to the U.S. are without any logo, directly available, to wish all members of the well-being of the Mid-Autumn Festival!
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Size: 196608 |
Author: mouse |
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Description: 【概要】
名称：DK的《小型空战最终版》-附源代码
版本：1.0.0.0
运行环境：Win9X/Me/NT/2000/XP/2003/Vista
开发环境：WinXp+VC6
软件开发者：FanSin Studio
开发商网站：
作者：棼紫|DKink
QQ:8566427
EMAIL：dkink@qq.com
【介绍】
空战这种经典而简单的游戏，我怎么可能会放过开发的机会呢？
老规矩附源代码发布。
【操作指南】
Enter开始，方向键移动，Ctrl键开火。
【说明】
难免会出现一些错误，在使用过程中如果发现错误或其他
问题，请给我发EMAIL。
和以前的版本相比：
1>修正了直线行走敌机能发射禁止子弹的bug。
2>加入了背景mid，使用资源方式。
-[Summary] name: DK s small air final version - attached to the source code version: 1.0.0.0 Operating Environment: Win9X/Me/NT/2000/XP/2003/Vista development environment: WinXp+ VC6 software developers: FanSin Studio Developer Website: Authors: confused Purple | DKinkQQ: 8566427EMAIL: dkink@qq.com [Introduction] air this classic and simple game, how could I pass up development opportunities? Ritual attached to the source code release. Operations Guide [Enter] start the arrow keys to move, Ctrl key to fire. [Description] there will inevitably be some mistakes in the use of the process if we find an error or other problem, please send me EMAIL. And compared to the previous version: 1> amended to walk a straight line enemy bullets can be fired prohibited bug. 2> joined the context of mid, means the use of resources.
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Size: 3578880 |
Author: mj |
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Description: 论坛上经常有对P2P原理的讨论，但是讨论归讨论，很少有实质的东西产生（源代码）。呵呵，在这里我就用自己实现的一个源代码来说明UDP穿越NAT的原理。 首先先介绍一些基本概念： NAT(Network Address Translators)，网络地址转换：网络地址转换是在IP地址日益缺乏的情况下产生的，它的主要目的就是为了能够地址重用。NAT分为两大类，基本的NAT和NAPT(Network Address/Port Translator)。 最开始NAT是运行在路由器上的一个功能模块。 最先提出的是基本的NAT，它的产生基于如下事实：一个私有网络（域）中的节点中只有很少的节点需要与外网连接（呵呵，这是在上世纪90年代中期提出的）。那么这个子网中其实只有少数的节点需要全球唯一的IP地址，其他的节点的IP地址应该是可以重用的。 因此，基本的NAT实现的功能很简单，在子网内使用一个保留的IP子网段，这些IP对外是不可见的。子网内只有少数一些IP地址可以对应到真正全球唯一的IP地址。-Forum on the principle of frequent discussion on P2P, but the discussion to the discussion, there is very little substance produced (source code). Oh, here on my own implementation of a source code to illustrate the principle of UDP through NAT. First of all, to introduce some basic concepts: NAT (Network Address Translators), Network Address Translation: NAT IP addresses are becoming more and more scarce in the circumstances, it is the main purpose of reuse in order to be able to address. NAT is divided into two categories, the basic NAT and NAPT (Network Address/Port Translator). Most are running at start NAT router on a function module. The first to propose that the basic NAT, it is the emergence of truth based on the following: a private network (domain) of nodes required only a few nodes and external network connection (Ha ha, this is up at mid-century and raised 90) . Well, this subnet in a matter of fact only a small number of nodes required of the world s only IP addresses, o
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Size: 299008 |
Author: guojun |
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Description: 程序所在目录：ex6_AD
板上引出的两路A/D 转换对应DSP 的A/D 模块分别是通道0 和通道8，输入电压0-5V 。
本开发板使用DA 的输出作为AD 的输入，因此需将5J2 的1-2，3-4 分别用短路子短接。
打开CC2000,进行如下操作：
1．Project->Open ，打开该目录中的工程文件。
2．Project->Rebuild ALL,编译链接
3．File->Load Program
4．光标移到Que()函数的asm(" NOP ")所处的行。
5． Debug->Toggle breakpoint （快捷键F9）
6． Debug->Animate （快捷键F12）
7． View->Watch Window ，在出现的watch 窗体中点右键分别插入变量AD_SIG0,AD_SIG8，则可看到所采到的这两路信号的电压值。
如果结果稍微不精确，请不要在意，这可能是因为没有采用专用基准源，以及信号不稳定的缘故。另外,TMS320LF2407 的内置A/D 的精度并不是很高。在前面两种情况已得到保证的情况下，变化幅度仍较大。（ ^_^ 呵呵，外面好一点的一片A/D 芯片就不低于100 块，所以想想能凑合着用也就可以了。）
-Procedures where the directory: ex6_AD
Leads to the two on-board A/D converter corresponds to DSP s A/D module are separately channel 0 and channel 8, input voltage 0-5V.
The development board using the DA output as AD input, so the need for the 5J2 son 1-2,3-4 separately shorted by a short circuit.
Open the CC2000, the following steps:
1. Project-> Open, open the project file directory.
2. Project-> Rebuild ALL, the compiler links
3. File-> Load Program
4. Move the cursor Que () function asm ( "NOP") in which the line.
5. Debug-> Toggle breakpoint (shortcut F9)
6. Debug-> Animate (shortcut F12)
7. View-> Watch Window, in the form of watch the mid-point right-insert variables separately AD_SIG0, AD_SIG8, can be taken to see that the two voltage signals.
If the outcome is slightly inaccurate, please do not care, this may be because there is no use of special reference, as well as the signal due to instability. In addition, TMS320LF2407 built
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Size: 28672 |
Author: To_oo |
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Description: 音乐播放器,可播放大部份与微软Windows Media Player兼容的媒体档案格式，当中包括非串流处理的档案类型(mp3,wav,mid,avi,mpg)以及串流处理的档案类型(asf,wma,wmv) 您亦可以使用预先制作好的播放清单 (如: pls,m3u)。如果您想要利用本程序做为串流媒体服务，您可能需要准备一些串流处理媒体的执行文件 (如: asx,wax,wvx)。为你的网页增加个音乐点播DJ.-Music player, can play most of Microsoft' s Windows Media Player-compatible media file formats, including the treatment of non-streaming file types (mp3, wav, mid, avi, mpg), as well as streaming deal with file types (asf, wma, wmv) You can also use the pre-production list of good players (such as: pls, m3u). If you' d like to use this procedure as a streaming media services, you may need to be prepared to deal with a number of streaming media implementation documents (such as: asx, wax, wvx). Increase your website for music on-demand DJ.
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Size: 86016 |
Author: hedan |
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Description: 自己实现的一个源代码来说明UDP穿越NAT的原理。 首先先介绍一些基本概念： NAT(Network Address Translators)，网络地址转换：网络地址转换是在IP地址日益缺乏的情况下产生的，它的主要目的就是为了能够地址重用。NAT分为两大类，基本的NAT和NAPT(Network Address/Port Translator)。最开始NAT是运行在路由器上的一个功能模块。 最先提出的是基本的NAT，它的产生基于如下事实：一个私有网络（域）中的节点中只有很少的节点需要与外网连接（呵呵，这是在上世纪90年代中期提出的）。那么这个子网中其实只有少数的节点需要全球唯一的IP地址，其他的节点的IP地址应该是可以重用的。因此，基本的NAT实现的功能很简单，在子网内使用一个保留的IP子网段，这些IP对外是不可见的。子网内只有少数一些IP地址可以对应到真正全球唯一的IP地址。如果这些节点需要访问外部网络，那么基本NAT就负责将这个节点的子网内IP转化为一个全球唯一的IP然后发送出去-He s a source to explain the principles through NAT UDP). First introduced some basic concepts: NAT (Network), its "Network Address translation: Network Address translation is growing in the IP Address of the circumstances, its main purpose is to Address reuse. NAT is divided into two categories, the basic NAT and NAPT Network (" Port/Translator). Most started on a router NAT is running a function module. The first is the basic NAT, which is based on the fact that, a private network (domains) nodes in only a few nodes need and connected to the network (ha ha, this is in the mid 1990s put). So the subnet of only a few of the nodes in the only global IP address to other nodes IP address should be reused. Therefore, the basic functions of the NAT is very simple, use a reserve in subnet mask, the IP is not visible outside the IP. Subnet only a few IP address can correspond to the real world of IP addresses. If the nodes need access to external network, then basic NAT is responsible for thi
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Size: 30720 |
Author: fzw |
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Description: 一个完整的网页设计,里面有一些关于圣诞节,烟花,中秋节等节日的网页-A complete website design, there are a number of Christmas, fireworks, such as the Mid-Autumn Festival' s website
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Size: 12448768 |
Author: 马里 |
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Description: 、支持mp3, wma, wav, mid SF0播放
2、支持三种播放模式：单曲重复，全曲重复，乱序播放
3、支持任意文件夹文件的播放（注：总文件夹数不大于136个）
4、支持完整歌词显示（GBK超大字库，支持简繁体，推荐歌词形式为多个时间tag复用歌词的形式） 如 [00：12][00：35][00：56]歌词1 对时间tag没有要求，总之就是完全符合规范。 5、6个按键，next,prev,V+,V-,(PLSY/PAUSE),mode/BL 6、支持2G以内sd卡
-, Support mp3, wma, wav, mid SF0 player 2, in support of the three player modes: single, repeat, all song repeat, out-of-order player 3, support for arbitrary file player folder (Note: the total number of folders is not more than 136 ) 4, to support the integrity of the lyrics display (GBK large font, to support simplified and traditional, the form of a number of recommended time lyrics tag reuse the form of the lyrics) in the case [00:12] [00:35] [00:56] lyrics 1 tag does not require time, a word that is in full compliance with the norms. 5,6 a button, next, prev, V+, V-, (PLSY/PAUSE), mode/BL 6, within the sd card support 2G
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Size: 3261440 |
Author: wuyan |
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Description: High-frequency financial data are observations on financial variables taken daily or at
a finer time scale, and are often irregularly spaced over time. Advances in computer
technology and data recording and storage have made these data sets increasingly
accessible to researchers and have driven the data frequency to the ultimate limit
for some financial markets: time stamped transaction-by-transaction or tick-by-tick
data, referred to as ultra-high-frequency data by Engle (2000). For equity markets,
the Trades and Quotes (TAQ) database of the New York Stock Exchange (NYSE)
contains all recorded trades and quotes on NYSE, AMEX, NASDAQ, and the regional
exchanges from 1992 to present. The Berkeley Options Data Base recorded similar
data for options markets from 1976 to 1996. In foreign exchange markets, Olsen
Associates in Switzerland maintains a data base of indicative FX spot quotes for
many major currency pairs published over the Reuters’ network since the mid 1980’s.
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Size: 3715072 |
Author: alazio |
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Description: This book is a crash course about broadband technology and
services. It is not a textbook. The book lays a foundation o
understanding about what broadband is and what i s not. I
will not cover every broadband technology, but will address the
popular and up-and-coming broadband technologies.
Those who should be reading this book include: the tech
nologist who does not understand what broadband is and need
a working understanding of the technology and issues involved
and the businessman seeking to understand where investmen
dollars are going. The junior or mid-level engineer seeking a
detailed view of broadband will have to shop for the specific
book that will cover the specific technology of interest.
The book provides the tools needed to understand the
broadband industry as well as giving a background on broad
band so that an educational foundation can be established.-This book is a crash course about broadband technology and
services. It is not a textbook. The book lays a foundation o
understanding about what broadband is and what it is not. I
will not cover every broadband technology, but will address the
popular and up-and-coming broadband technologies.
Those who should be reading this book include: the tech
nologist who does not understand what broadband is and need
a working understanding of the technology and issues involved
and the businessman seeking to understand where investmen
dollars are going. The junior or mid-level engineer seeking a
detailed view of broadband will have to shop for the specific
book that will cover the specific technology of interest.
The book provides the tools needed to understand the
broadband industry as well as giving a background on broad
band so that an educational foundation can be established.
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Size: 2294784 |
Author: Duc Long |
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Description: 这是我大学同学今年的毕业设计项目：基于USB的红外鼠标。红外遥控器模拟鼠标的左右键，还有滚动条。红外接收用HS0038A接收，在这设计中红外处理部分用一块51单片机处理。USB信号处理部分（即USB设备）用51单片机和PDIUSBD12芯片构成-This is my university students graduating this year' s design project: Based on the infrared USB mouse. Infrared remote control analog left and right mouse button, as well as scroll bar. Infrared receiver with HS0038A receive, in the design of mid-infrared processing section 51 with a microcontroller processing. USB signal processing part (ie, USB devices) with 51-chip microcontroller and PDIUSBD12 composition
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Size: 79872 |
Author: qinyu |
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Description: Single and Multi-Chip Microcontroller Interfacing teaches the principles of designing and programming microcontrollers that will be used in a wide variety of electronic and mechanical devices, machines and systems. Applications are wide, ranging from controlling an automobile to measuring, controlling and displaying your home s temperature. The book utilizes the new Motorola 68Hc12 microcontroller as the primary example throughout. This new microprocessor is the latest development in mid-level 16-bit microcontrollers that will be used world wide due to its low cost and ease of programming. The book features the most popular programming languages--C and C++--in describing basic and advanced techniques. The 68Hc12 will replace many of the existing 8-bit microprocessors currently used in applications and teaching.
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Size: 37433344 |
Author: Gront |
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Description: 朱天华博士的独著著作，关于java语言中的模式的诸多问题给予了回答，适合中级人员的一本好书-Dr. Zhu Tianhua' s only a book, on the java language, the model answers given to many issues for mid-level personnel, a good book
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Size: 39387136 |
Author: san yang |
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Description: 公司开发的成品，用于嵌入式linux平台，腾达的3070的wifi，-Products developed for the embedded linux platform, Tenda of 3070' s wifi,
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Size: 28672 |
Author: 龚嘉 |
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Description: 中值滤波的C语言实现,简洁而有效，尤其对学习图像处理有很大的益处。-middle value filter s C language implemention，Succinct and effective. Especially to studies the imagery processing to have the very big profit.
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Size: 277504 |
Author: zlu |
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Description: 去掉MID程序窗口的标题栏，作为程序开发与C++ builder练习学习的小例子，调用了系统函数的使用-Remove MID program window' s title bar, as the program development with C++ builder practice learning little example of the use of calling the system function
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Size: 381952 |
Author: bbs |
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Description: Function 提取(t As Range) '按照出现先后顺序排序＝提取(a1:a100)
Dim d, s, R, i%
Set d = CreateObject("Scripting.Dictionary")
For Each R In t
s = s & R
Next
s = StrReverse(s) & "0123456789"
For i = 1 To Len(s)
d(Mid(s, i, 1)) = ""
Next
提取 = Join(d.keys, "")
End Function(Function
Dim d, s, R, i%
Set d = CreateObject("Scripting.Dictionary")
For Each R In t
s = s & R
Next
s = StrReverse(s) & "0123456789"
For i = 1 To Len(s)
d(Mid(s, i, 1)) = ""
Next
= Join(d.keys, "")
End Function)
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Size: 8192 |
Author: 红色大尉
|
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