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一部分希尔伯特-黄变换（HHT）的经验模式分解（EMD）程序，(part of Hilbert-Huang Transformation (HHT) Empirical Mode Decomposition (EMD) procedures, huh)

说明：  五点差分求解椭圆边值问题，简单明了，运行快捷，好用(five points)

An efficient algorithm for identification of PIL on Solar Dynamic Observatory (SDO) Helioseismic and Magnetic Imager (HMI) magnetograms. Detailed description will appear in the paper: Volobuev, D.M. Polarity-Inversion Line Preceding X-class Flare, Solar Physics, Initial data (65 megabyte .fits magnetograms) can be downloaded from http://hmi.stanford.edu/ - Model_test_PIL_Open.m script - calculates parameters of the example(simulated S-curve) - SDO_PIL_Open.m script - identifies PIL on SDO magnetogram and calculates its parameters - 5 functions are used within these scripts

基于小波分析在语音信号的去噪方法研究附带相关代码(Wavelets analysis Speech signal De-noising)

MATLAB FOR FULL MIMO OFDM CODING

本程序仿真了AWGN信道下，采用DS扩频对bpsk信号的影响，扩频码采用walsh码，扩频因子16； 接收端进行rake接收，然后分集合并，比较了三种分集方式对误码率的影响 从图像可以看出在扩频因子较高的情况下，最大比值合并与等增益合并性能相近(This program simulates the AWGN channel, using DS spread spectrum signal for bpsk influence spreading code using walsh code spreading factor 16 Rake receiver receiving end, and diversity combining, diversity compares three methods on the bit error rate of As can be seen from the image in the case of higher spreading factor, the maximum ratio combining and equal gain combining similar performance)

判断半正定矩阵与正定矩阵间的一种新的准则，gky方法是判定系统是否稳定的一种很有效的方法，里面有源代码和相应文档(Judge half positive definite matrix and the positive definite matrix, a new criterion between gky method is to determine whether the system stability of a kind of very effective method, there are source code and documentation accordingly)

说明：  客户MATLAB请求投资政策评审的数据经济指标(Cliente Matlab para solicitar datos a la API Indicadores economicos)

用MATLAB写的图像处理，包括绘制直方图，灰度拉伸，图像均衡化及频域平滑滤波代码，简洁实用，注释清晰(Written using MATLAB image processing, including the plot histogram, gray stretch, image equalization and frequency domain filtering code, simple and practical, clear notes)

在DOA估计中，实际测量和理论肯定存在误差，比如通道误差，阵元位置误差，我们提出一种toplitz的预校正方法。(In the DOA estimate, the actual measurement and theory certainly exist errors, such as channel error, array (position errors, we put forward a kind of toplitz or calibration methods. )