pso

关于matlab的一些建模方法等 非常实用的建模书籍(some model about matlab)

matlab实现音乐通用特征提取并进行音乐检索，共实现40种特征提取。(MIRtoolbox proposes a large set of musical feature extractors.MIRtoolbox includes around 40 audio and music features extractors and statistical descriptors.)

说明：   使用二分法对样本集进行剪辑，剪辑法的思想，就是将样本集分成训练集与考试集， 利用训练集样本对考试集的样本进行分类（使用近邻法），如果考试集中某个样本分类错误的话，将这个样本删除。在该函数中，使用最近邻法，只进行一次剪辑（遍历完考试集中的样本以后退出）。还有一种重复剪辑法（适用于样本比较多的情况），把样本随机分为多个样本集，将相邻的两个样本前一个作为考试集，后一个作为训练集，调用二分剪辑。所有的样本子集剪辑完毕以后，在递归调用，直到没有样本被剪辑掉,没得讲，重复剪辑的效果肯定好一些。 (The sample sets using the dichotomy of the clips, editing law idea is to sample set into training set and test set, using the training set samples to the test set of samples (using the nearest neighbor algorithm), if the examination focused on a sample of classification error then delete this sample. In the function, use the nearest neighbor method, only once clips (focused on a sample of traversal finished after the exit exam). There is also a repeat clip method (samples are more applicable to the case), the samples were randomly divided into multiple sample set, the two adjacent samples of the former one as a test set, the latter one as a training set, call the two sub-clips. All the samples were a subset of the clips after they have finished, in the recursive call, until there are no samples were clip out, did not have to say that the effect of repeated clips definitely better.)

real subroutine FFT (real subroutine FFT)

读取卫星云图，并计算卷云边的长度曲率等matlab实现(Read cirrus satellite image and calculate the length of curvature, such as edge)

说明：  利用矩阵重构，在小样本下，实现了比常规MUSIC更高的分辨精度(Use of matrix remodeling, in small sample situation, implementation than conventional MUSIC higher resolution )

Write a version of imfilter called myfilter.m which takes as input an image and a filter mask, use the separable filter procedure to Gaussian filter

数字图像处理用非局部均值方法，其中仔细介绍了非局部均值的原理，用法(A Non Local Algorithm for Image Denoising)

该代码主要实现了OVTDM(时域重叠复用系统)的仿真，包含脉冲成型、匹配滤波，白化滤波，改进的viterbi译码等。(This code is mainly to simulate the OVTDM system.)

用Matlab实现16QAM的调制和解调，在matlab7环境下运行(Matlab realize with 16QAM modulation and demodulation, in the circumstances to run matlab7)