This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal’s programs collection, which can be found in [1]. While Neal’s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder).
標簽: LDPC introduction simulation software
上傳時間: 2014-12-05
上傳用戶:change0329
This file contains a C++Builder 4 project called SimplyChaos-X ver 3.1 (SCX31). SCX31 is an encryption tool. I designed it as my graduation paper work. SCX31 is a symmetric stream cipher built on chaos function, one time pad cipher and inspiration from Ground Effect (aviation). The key length can be up to 40 characters (320 bits).
標簽: SimplyChaos-X SCX contains Builder
上傳時間: 2016-06-07
上傳用戶:nanshan
用C編程實現對26個字母用于電報打字的優先權進行編程,生成哈夫曼數,并可實現對某一語句的編碼,譯碼。本文舉例此語句為:this program is my favorite.
上傳時間: 2013-12-23
上傳用戶:qq21508895
MT: windows NT/2000/XP command line tape manipulation written to format a tape windows-XP backup refused to write or format... and satisfy my curiosity Can be used for crude data recovery (combine seek and read)
標簽: tape manipulation windows-XP windows
上傳時間: 2013-12-23
上傳用戶:tb_6877751
jsp blog系統 說明: 1,使用前,請先打開db.java修改其中的數據庫信息,然后用你的jdk編譯后放入WEB-INF\classes\dbpac\下。將所有文件上傳到服務器,然后運行install.html建立數據庫。安裝完畢后,請手動刪除install.html和install.jsp 2, 如果是unix服務器,請設置config.php,db.php,links.php,skinlist.php的文件權限設置為777 3, 打開js目錄下的my.js,根據自己的需要修改即可。 4,打開javamail.jsp,將 "郵件服務器登錄用戶名"," 郵件服務器登錄密碼","發送人郵件地址","接受人郵件地址",替換成自己的信息。(郵件服務器最好為163的郵箱,否則有些郵箱可能不支持。推薦 接受人郵件地址為您的QQ郵箱地址,這樣方便。注意 發送人郵件地址必須和您的郵件服務器用戶名匹配。)
上傳時間: 2013-12-15
上傳用戶:lhw888
哈夫曼樹很易求出給定字符集及其概率(或頻度)分布的最優前綴碼。哈夫曼編碼正是一種應用廣泛且非常有效的數據壓縮技術。該技術一般可將數據文件壓縮掉20%至90%,其壓縮效率取決于被壓縮文件的特征。 利用哈夫曼編碼進行通信可以大大提高信道利用率,縮短信息傳輸時,降低傳輸成本。但是,這要求在發送端通過一個編碼系統對待傳送電文須預先編碼,在接收須將傳送來的數據進行譯碼。請自行設計實現一個具有初始化、編碼、譯碼、輸入/輸出等功能的哈夫曼碼的編碼/譯碼系統。并實現以下報文的編碼和譯碼:“this program is my favorite”。
上傳時間: 2016-08-19
上傳用戶:xyipie
數據同步工具,可以對sybase 、access、oracle、my sql、sqlserver等數據庫進行數互導數據,一個非常有用的數據同步工具
標簽: 數據同步
上傳時間: 2016-08-30
上傳用戶:zhangjinzj
流媒體的 測試報告 很有用,it is scream media plan and report of my projcet.
上傳時間: 2014-12-22
上傳用戶:alan-ee
是《linux設備驅動》RD2,的中文版,本書是告訴一個新手,如何開發Linux驅動,本書是根據E文翻譯過來的,適合搞嵌入式行業而且英文不太好的朋友,如果英文nice,建議看《linux device drivers 3》,站里有,如果你在本站找不到,也可以發郵件給我,我發給你! my email: lifei4690277@yahoo.com.cn
上傳時間: 2016-10-01
上傳用戶:caozhizhi
ActiveX Data Objects Programming in C++ Description: ActiveX Data Objects Programming How To: Hey, this is some kind of an experiment in writing tutorials in PSC. All of my articles are in .html files included in the zip file, together with the sample code
標簽: Programming ActiveX Objects Data
上傳時間: 2013-12-22
上傳用戶:水口鴻勝電器