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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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Matlab6XWavelet
Matlab 6.X辅助小波分析与应用一书配套代码:Matlab 6.X辅助小波分析与应用(Matlab 6.X assisted with the application of wavelet analysis of a book supporting code : Matlab 6.X assisted with the application of wavelet analysis)
- 2007-02-21 22:20:49下载
- 积分：1
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Wheel-And-Axle
基于matlab建立的关于汽车轴的控制模型，包括轴的运动方程和模型的建立。其实在ADVISOR中可以找到，不过，用matlab2012版重新建立了。(Established based on matlab axis control on the car model, including axis motion equations and model. ADVISOR can be found in the fact, however, re-established with matlab2012 version.)
- 2013-11-22 17:02:17下载
- 积分：1
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topopt-99
拓扑优化99行的Python版本，很强的大Python指导版本(Topology optimization Python version of the 99 line, a strong big Python guide version)
- 2020-12-17 10:29:12下载
- 积分：1
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MATLAB
this r program for QUADRATURE AMPLITUDE MODULATION AND QPSK
- 2010-08-08 12:39:12下载
- 积分：1
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toolbox_fast_marching
The goals of this tool is to manipulate the fast marching algorithm in 2D and 3D. Application to shortest path extraction (e.g. road tracking and tubular structure extraction in medical images), shape statistics and geodesic remeshing are presented.(The goals of this tool is to manipulate the fast marching algorithm in 2D and 3D. Application to shortest path extraction (eg road tracking and tubular structure extraction in medical images), shape statistics and geodesic remeshing are presented.)
- 2007-12-17 20:29:19下载
- 积分：1
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Chebyshev
实现切比雪夫多项式拟合的函数源代码，保存后可直接调用(Chebyshev polynomial fitting function source code, save directly after the call.)
- 2018-09-05 09:55:03下载
- 积分：1
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fuzzy_dtc_sim
永磁同步电机的模糊矢量控制仿真模型，拿出来和大家分享。(simulation model of PMSM based on fuzzy FOC)
- 2020-11-01 19:19:57下载
- 积分：1
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nibian
较为精确的逆变器仿真模型，包括控制系统，可作为初学者的重要参考,很有参考价值(More accurate simulation model of inverter, including the control system can be used as important reference for beginners，a good reference)
- 2010-09-04 11:09:33下载
- 积分：1
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PCA
应用PCA进行特征提取和降维，可以应用于数据挖掘，机器学习，人脸识别上！(Application of PCA for feature extraction and dimensionality reduction can be applied to data mining, machine learning, face recognition on!)
- 2010-10-20 10:50:41下载
- 积分：1
