-
QC_codes
Construct the short length of QC LDPC codes without girth 4 and girth 6(The Program to construct the short length of QC LDPC codes without girth 4 and girth 6
Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn.
This program presents an approach [1] for constructing the short length of LDPC codes with girth 8. First, we design 3 submatrices with different shifting functions given by our schemes, then combine them into a matrix according to our approach, finally, expand the matrix into a desired parity-check matrix using identity matrices and cyclic shift matrices of the identity matrices.
The simulation results in AWGN channels show that the codes which can be obtained by the generator matrix derived from this check matrix for encoding the random information bits are as good as random LDPC codes [1].
Ref:
[1] J. Fan, Y. Xiao, “A design of LDPC codes with large girth based on the sub-matrix shifting”, IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006), (CP525), p. )
- 2009-05-28 16:00:14下载
- 积分：1
-
few3Dpdf
其意见书是根据亚历山大Gramfort的“MATLAB的网状到PDF与三维交互对象“。他的计划将允许网数字转换成3D PDF格式。然而，他的代码只允许一个层进行转换，并不会启用的透明度。
本意见书不创建最终的PDF。它产生的U3D文件，然后可以使用到PDF的Adobe Acrobat Pro文件插入。本文件还允许多层网格，以创建，并为每个层的透明度指定。
此代码包含一个函数（installGoogleArchive.m），它会自动下载并安装所需的中间数据格式转换（IDTF）进入最后的通用3D（U3D）文件的二进制文件。此代码还只包括转换器的Windows版本。(his submission is based on Alexandre Gramfort s "matlab-mesh-to-pdf-with-3d-interactive-object". His program allows meshes to be converted into 3D PDF figures. However, his code only allows a single layer to be converted, and does not enable transparency.
The present submission does not create the final PDF. It generates the U3D file which can then be inserted into a PDF file using Adobe Acrobat Pro. This submission also allows multilayer meshes to be created, and for the transparency of each layer to be specified.
This code includes a function (installGoogleArchive.m) which will automatically download and install binaries required to convert the intermediate data format (IDTF) file into the final Universal 3D (U3D) file. This code also only includes the windows version of the converter.)
- 2011-05-15 00:19:37下载
- 积分：1
-
WiSNAP
MatLab图像传感器网络仿真平台WiSNAP，非常好用和清晰(MatLab image sensor network simulation platform WiSNAP very useful and clear)
- 2007-06-08 15:06:53下载
- 积分：1
-
sanxiang
基于matlab的三相桥式整流电路仿真模型的仿真(Three-phase bridge rectifier circuit simulation model)
- 2013-10-03 00:26:11下载
- 积分：1
-
Alamouti_twoway_Compare
两种不同处理方案，针对空时分组码的编码解码方案，比较性能差异(Two different treatment options for encoding and decoding scheme STBC, the comparison of the performance difference)
- 2015-01-05 08:36:25下载
- 积分：1
-
Speech-Enhance
采用谱减法的语音降噪实现代码，适用于语音和音频系统中，可直接调用。(Speech noise reduction using spectral subtraction implementation code, for voice and audio systems, can be called directly.)
- 2014-11-01 23:41:52下载
- 积分：1
-
qpsksystem_SJSU
This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. (This is a model of a QPSK modulation system f or transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC)
- 2006-06-20 03:44:17下载
- 积分：1
-
SRAVANaa
hai check it its very good code..and pv and eindmpptalgoritham
- 2013-07-25 10:50:44下载
- 积分：1
-
matlabSimulink
电子文档介绍利用matlab进行计算机仿真教程。(Electronic document describes the use of computer simulation matlab tutorials.)
- 2013-07-16 22:18:18下载
- 积分：1
-
QAM_16
说明： 16QAM载波同步的影响仿真，针对有频偏，有相偏，无频偏相偏情况下的星座图。(16QAM carrier synchronization of simulation, for a frequency offset, a phase offset, phase offset without offset under the constellation.)
- 2010-03-31 16:01:40下载
- 积分：1
