the-damping-identification

北邮一个老师的讲义，还有作业和实验，是学习matlab和数学建模的辅导材料(Beijing University of Posts and Telecommunications a teacher' s lecture notes, there are operations and experiments, and mathematical modeling to learn matlab counseling materials)

MATLAB的绘图码和讲义，列举了该软件中的各种绘图命令。(MATLAB code and drawing notes, citing the software in a variety of drawing commands.)

说明：  主成分分析（PCA）的增量实施。 该算法在线更新每个变换系数矩阵新样本，而无需将所有样本保留在内存中。 在某种意义上，该算法在形式上等效于通常的批处理版本给定一个样本，将变换系数设置在末尾过程是相同的。 实时讨论了应用PCA的意义。(Incremental implementation of the principal component analysis (PCA). The algorithm updates the transformation coefficients matrix on-line for each new sample, without the need to keep all the samples in memory. The algorithm is formally equivalent to the usual batch version, in the sense that given a sample set the transformation coefficients at the end of the process are the same. The implications of applying the PCA in real time are discussed with the help of data analysis examples (a sample set is uploaded together with the examples))

matlab & VB document PPT useful for mastres

实现BPSK，QPSK，16QAM，64QAM等的调制解调(Achieve BPSK, QPSK, 16QAM, 64QAM modulation and demodulation, etc.)

用matlab编写的simulink模块的设计(Written by matlab simulink Module)

time spliter gps data

此为matlab版的gist特征提取，亲测可以直接运行(This is the gist of feature extraction matlab version, pro-test can be run directly)

压缩文件里边包含好几个合成地震记录的程序，包括楔形模型，断层等，有的还画出了地震记录，反射系数的振幅谱~(the zip file contains several synthetic seismogram programs, including wedge model, fault model, etc., some even draw the earthquake records, the reflection coefficient of amplitude spectrum ~ )

考虑单独变量之间的相关性，将其变成扩展变量，再用留一法进行数据处理，最后用SVM进行回归(Consider the correlation between individual variables, to expand into the variable, and then leave one for data processing, and finally with SVM regression)