interpol

本人是做量化交易的，这个是进入行业的基础，通过matlab测算所有的均线对股票的影响，这个是用来测试ETF和IF的。可以通过这个M文件知道哪个是最优均线(I do quantitative transaction, this is the foundation of entering the industry, through matlab to calculate all the line influence on stock, this is used to test the ETF and the IF.Can use this know which is the optimal average M file)

对原始语音进行上采样和下采样，分析对比他们的时域图和频谱图。最后对比原始语音、75HZ激励、150HZ激励以及噪声激励下的效果(SOME SIMPLE MANIPULATIONS OF SOUND USING DIGITAL SIGNAL PROCESSING The original sound and its spectrogram Downsampling the waveform downsampling Upsampling the waveform Linear filtering the waveform Original speech The source-filter model of speech Speech with 75-Hz excitation Speech with 150-Hz excitation Speech with noise excitation)

用matlab编辑音乐，模拟萧的声音演奏天空之城(Use matlab to edit music)

COMSOL Multiphysics有限元法多物理场建模与分析(The book of COMSOL)

MUSIC算法是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。信号子空间由阵列接收到的数据协方差矩阵中与信号对应的特征向量组成，噪声子空间则由协方差矩阵中所有最小特征值（噪声方差）对应的特征向量组成。MUSIC算法就是利用这两个互补空间之间的正交特性来估计空间信号的方位。噪声子空间的所有向量被用来构造谱，所有空间方位谱中的峰值位置对应信号的来波方位。MUSIC算法大大提高了测向分辨率，同时适应于任意形状的天线阵列，但是原型MUSIC算法要求来波信号是不相干的。(MUSIC algorithm is a matrix decomposition method based on feature space. From the geometric point of view, the observed spatial signal processing can be decomposed into signal subspace and noise subspace, it is clear that the two spaces are orthogonal. The signal received by the array to the subspace of the covariance matrix of the signal component corresponding eigenvectors, the noise subspace of the covariance matrix of all by the smallest eigenvalue (noise variance) eigenvectors corresponding to the composition. MUSIC algorithm is the use of orthogonal properties between these two complementary space to estimate the spatial orientation of the signal. Noise subspace of all vectors are used to construct the spectrum, all the spatial orientation of the spectrum corresponding to the peak position of the signal wave direction. MUSIC algorithm greatly improves the resolution measurements, while the antenna array adapted to any shape, but the prototype MUSIC algorithm requires to wave sign)

linefollower program developed in matlab to follow black line

有关粒子群算法的源代码，matlab编写，希望对需要的朋友有用。(the PSO source code, Matlab prepared, and I hope to the needs of useful friends.)

single-objective matlab code

VB调用Matlab制作的COM组件实现二者混合编程，本文章主要介绍在MATLAB中编写com组件，为了检验结果的正确性，在工程地质中要用到这项技能。（郑重声明：本资料是借用张赛民老师的成果，张赛民老师为第一作者，未经允许，不得用于商业用途）(VB COM component calls made to achieve both Matlab programming mix, this article focuses on com components written in MATLAB, in order to verify the correctness of the results, in engineering geology to use this skill. (Solemnly declare: This information was borrowed China teacher Zhang race results, race Min Zhang teacher as the first author, without permission, shall not be used for commercial purposes))

一个有关OFDM系统信道估计的程序，MATLAB环境(An OFDM system channel estimation procedure, MATLAB environment)