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).
标签: LDPC introduction simulation software
上传时间: 2014-01-14
上传用户:大融融rr
实现最优二叉树的构造;在此基础上完成哈夫曼编码器与译码器。 假设报文中只会出现如下表所示的字符: 字符 A B C D E F G H I J K L M N 频度 186 64 13 22 32 103 21 15 47 57 1 5 32 20 57 字符 O P Q R S T U V W X Y Z , . 频度 63 15 1 48 51 80 23 8 18 1 16 1 6 2 要求完成的系统应具备如下的功能: 1.初始化。从终端(文件)读入字符集的数据信息,。建立哈夫曼树。 2.编码:利用已建好的哈夫曼树对明文文件进行编码,并存入目标文件(哈夫曼码文件)。 3.译码:利用已建好的哈夫曼树对目标文件(哈夫曼码文件)进行编码,并存入指定的明文文件。 4.输出哈夫曼编码文件:输出每一个字符的哈夫曼编码。
上传时间: 2014-11-23
上传用户:shanml
VB6 + LibUsb Intigration It s Not my original work, but i guess i can share it
标签: Intigration original LibUsb guess
上传时间: 2016-05-12
上传用户:wcl168881111111
1.利用I/O口产生一定频率的方波,驱动蜂鸣器,发出不同的音调,从而演奏乐曲(最少三首乐曲,每首不少于30秒) 2.采用LCD显示信息 3.开机时有英文欢迎提示字符,播放时显示歌曲序号(或名称) 4.可通过功能键选择乐曲,暂停,播放。 5.选作内容:显示乐曲播放时间或剩余时间
上传时间: 2013-12-30
上传用户:lxm
Embedded systems for specific applications, usually in the centre, and as the core processor for the practical application of soft Hardware systems, the hardware is the basis of the embedded operating system and platform, the software provides the necessary operational Physical platform and communication interface, and general embedded system software, including operating systems and application software, which Control is the core of the whole system, providing information such as HCI.
标签: the applications for processor
上传时间: 2013-12-29
上传用户:稀世之宝039
THXS3EI-I实验教材实验平台简介以及示例
上传时间: 2016-05-15
上传用户:gengxiaochao
GPIO通用I/O口DSP程序编制
上传时间: 2016-05-15
上传用户:PresidentHuang
I WANT TO SAY THIS IS DIFICULTY
上传时间: 2014-12-05
上传用户:onewq
The Disk sample is used with Classpnp.sys as disk driver. The sample supports Plug and Play, Power Management, WMI, and failure prediction (S.M.A.R.T.), and it is 64-bit compliant.
标签: sample The Classpnp supports
上传时间: 2014-01-27
上传用户:bruce
基于LPC2210 的ZLG/CF 驱动使用. CF 卡有PC 卡I/O、MEMORY 及True IDE 等3 种模式,而True IDE 模式兼容IDE 硬 盘,该模式比其它的两种模式更实用,是3 种模式中使用较多的一种。本节中描述CF 卡在 True IDE 模式下的应用。 使用LPC2210 的通用可编程I/O 口,模拟产生ATA 设备的读写时序,实现对CF 卡及 IDE 硬盘等ATA 设备读写操作。使用LPC2210 的GPIO 功能,可以非常灵活而简单地实现 ATA 读写时序。
上传时间: 2016-05-18
上传用户:海陆空653