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实现MIMO－OFDM功率、信道、比特等资源自适应分配的注水算法。(MIMO-OFDM realize the power, channel, bit-allocation of resources such as water injection adaptive algorithm.)

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. )

用monte carlo 方法计算圆周率pi,采用的是随机投点法。以及另一个应用程序(with monte carlo methods calculated pi pi, the vote is random point method. And another application)

image filtering to reduce difrent type of noise

matlab 解决声波信号的时域及频域的处理(Matlab basic waveform of the sound processing, including time domain, frequency domain analysis ...........................)

matlab调用libsvm时数据归一化与反归一化之归一化程序 (matlab libsvm)

matlab实现产生二进制随机序列函数，包括概率分布(matlab generate binary random sequence to achieve the function, including the probability distribution)

使用高斯模型对威斯康辛州大学医学院长期乳腺癌数据进行了贝叶斯模式识别。识别率为95以上，可以作为模式识别的重要案例。(Gaussian model using the University of Wisconsin School of Medicine conducted a long-term breast cancer data Bayesian pattern recognition. Recognition rate is above 95 can be regarded as an important case of pattern recognition.)

说明：  从国外ECC网站上找到的，可以作为初始学习的参考程序。(from abroad ECC found on the site, as the initial study of the reference program.)

求系统的时域性能指标的函数，给定系统的数学模型，即可通过该函数计算系统的超调量、峰值时间、调整时间和上升时间，经测试非常好用。(system for the time-domain performance of the function, given the mathematical model, This function can be calculated by the overshoot, the peak time, adjusting time and rise time, the test is very handy.)