xiaorgb

本程序用于Matlab对DAT格式的心电信号进行读出的功能(This procedure for Matlab on ECG DAT format to read out the functions of)

Matlab的命令索引，是word格式的，还有目录，方便查找！(Matlab command index, is a word format, as well as directories and convenience!)

讲解LDA的，程序编写较为精致，可读性强(Explain the LDA, the program is to write more sophisticated, readable)

OPQSK调制信号的载波相位/频率以及时间同步算法的实现与验证，很有使用价值(OPQSK modulated signal carrier phase/frequency and time synchronization algorithm and validation, very valuable)

这种邻域插值的matlab源代码,学生需要可以下载使用(This neighborhood interpolation of matlab source code, students can download to use )

贝叶斯最小错误率分类器 用两列数据属性求二维正态分布 求后验概率分类(Bayesian minimum error rate sorter two columns of data attributes seeking seeking a two-dimensional normal posterior probability classification)

对原始信号的2FSk的，调制，采用相干解调(2 FSk signal to the original, modulation, the coherent demodulation)

说明：  欧洲winner计划里建立的MIMO 空间信道模型。可用于MIMO仿真。(The European winner in the establishment of MIMO space program channel model. Simulation can be used for MIMO.)

Data Encryption by Matrix Multiplication We will only use numbers 0 to 26 for the encryptive mathematics operation. Numbers from 1 to 26 are for letters from A to Z and 0 is for all non-letter characters. To minimize usage of numbers, all letters are converted to upper case. The original message is converted to number array according to the ASCII table and minus 64. We partition whole array into blocks of 8 numbers. The last block may be added several zeros. Then multiply each block by the an 8x8 matrix A which is invertible in Z27 to get cipher data. The decryption is the same process except to use its inverse matrix B. For good visual reading, we convert all non-letter characters to under score for the decryption.

基于广义矩阵分布的时频变换方法，用于信号时频分析。(Based on the Generalized time-frequency distribution matrix transformation method for time-frequency analysis.)