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puguji
用周期图谱法以及其改进算法进行的经典谱估计(Mapping method using the cycle as well as its improved algorithm for the classical spectral estimation)
- 2009-04-24 07:27:28下载
- 积分：1
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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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ld
说明： LD算法，实现信号的分析，频谱分析，避免矩阵的求逆运算(failed to translate)
- 2010-04-29 22:32:29下载
- 积分：1
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ant_main
智能算法中的遗传算法实现最优化的文件，对原始的算法有所改进(Intelligent algorithm genetic algorithm to optimize the file to the original algorithm improvements)
- 2013-09-13 15:27:27下载
- 积分：1
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Cmex.pdf
使用C 语言编制Mex算法程序，对于提高算法的性能有很大帮助。
希望该文档能帮助大家进入matlab 和 c 语言之间互动的世界，也期待你编制更多的原创程
序奉献给研学论坛，尤其是混沌和分形版面(The use of C language algorithm Mex procedures, for improving the algorithm performance of much help. I hope the document will help us to enter the matlab and c language of interaction between the world, and also look forward to your program to produce more original Forum dedicated to research, especially the chaotic and fractal layout)
- 2008-12-21 17:05:36下载
- 积分：1
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donghua
用Matlab软件画出动画图，显示动画图的代码是一样的，只是具体的画图类型不一样。(Using Matlab software to draw animation showing the animation map code is the same, just not the same as the specific type of drawing.)
- 2010-02-17 11:55:46下载
- 积分：1
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PSO_case1
粒子群优化算法的一个寻优案例,测试函数含有多个局部极值，尝试用PSO算法寻找全局极值(a case of Particle Swarm Optimization algorithm.)
- 2011-01-27 16:58:18下载
- 积分：1
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EZ430_ACC1
TI chronos ez430加速度传感器数据读取程序，matlab程序获取chronos腕表中的三维加速度数据，以用于后续处理，并将其在图形界面中显示出来(TI chronos ez430 acceleration sensor data acquisition program, matlab program for chronos watch the three-dimensional acceleration data, for subsequent processing, and displayed in a graphical interface)
- 2011-08-10 14:46:36下载
- 积分：1
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OFDM_SFcodes_2ST_16states_function
This program is desiged to evaluate the space-frequency codes
According to our desgn criteria for space-frequency codes
used in OFDM system
- 2011-08-29 18:06:21下载
- 积分：1
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qam_MATLAB_simulation
demodulate_sig 解调
generate_noise 叠加高斯噪声
insert_value 插值
modulate_to_high 调制到载波
pick_sig 采样
plot_2way 绘制正交信号图
plot_astrology 绘制星座图
plot_snr 绘制误码率曲线图
project 主函数
Qam_modulation QAM调制函数
rise_cos 升余弦滤波
stem_2way 绘制滤波后的信号图
(qam matlab simulation)
- 2011-11-01 19:47:50下载
- 积分：1
