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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
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ZF_MMSE_LMS_SATO_CMA
1.原始信号A,通过信道受噪声污染后的信号q,然后分别经过均衡器ZF(MMSE)得到信号U,可以画出U的分布图 2.分别应用LMS,SATO,CMA算法得到U。(其中包括最佳延迟、均方误差的计算)所有结果均以图像形式显示。(1. The original signal A, subject to noise pollution through the channel after the signal q, and then through the equalizer, respectively ZF (MMSE) receive the signal U, the distribution of U can draw Figure 2. Were applied LMS, SATO, CMA algorithm to be U. (Including the best delay, mean square error terms) all the results are displayed in graphic form.)
- 2010-01-05 22:12:21下载
- 积分:1
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speech-process
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- 2014-11-17 16:24:36下载
- 积分:1
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project_SVM
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- 2013-04-24 09:26:02下载
- 积分:1
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matrix
求图象灰度共生矩阵的代码,希望对大家有用(Image Gray Level Co-occurrence matrix for the code, in the hope that useful)
- 2007-11-28 11:00:58下载
- 积分:1
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ArbitraryWaveformGenerator
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- 2009-12-23 14:33:35下载
- 积分:1
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rkf45
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- 2011-12-18 21:54:05下载
- 积分:1
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contourlet_toolbox
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- 2011-03-18 11:06:42下载
- 积分:1
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MATLAB-book
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中国电力出版社出版,内容详细,易懂(a book for leaners of matlab)
- 2012-05-03 20:52:04下载
- 积分:1
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BP_FUZZY
用BP神经网络优化模糊控制器,进行学习,系统有两个输入,输出误差曲线和期望曲线,BP学习误差曲线(BP neural network to optimize the fuzzy controller learning system has two inputs, the output error curve and expectations of the curve, the BP learning error curve)
- 2012-06-23 21:16:26下载
- 积分:1