matlabfrequence

MIMo communication system simulation source code

一种声音合成的算法研究，可用Matlab方法验证(A sound synthesis algorithm used Matlab method validation)

matlab全息技术中的菲涅尔仿真成像程序。(matlab holography Fresnel simulation imaging procedures.)

可轻松实现短时傅里叶变换及对应逆变换，可更改程序内部窗函数，自行选择合适窗函数进行分析(Short-time Fourier transform and corresponding inverse transform can be easily realized. The internal window function of the program can be changed and the suitable window function can be selected by oneself for analysis.)

LFM的脉冲压缩，即匹配滤波器的产生，并给出了压缩后的仿真波形。(LFM pulse compression, that is, the selection of matched filter, and gives the simulation waveforms compressed.)

说明：  珍藏版，可实现，新K均值聚类算法，分为如下几个步骤： 一、初始化聚类中心 1、根据具体问题，凭经验从样本集中选出C个比较合适的样本作为初始聚类中心。 2、用前C个样本作为初始聚类中心。 3、将全部样本随机地分成C类，计算每类的样本均值，将样本均值作为初始聚类中心。 二、初始聚类 1、按就近原则将样本归入各聚类中心所代表的类中。 2、取一样本，将其归入与其最近的聚类中心的那一类中，重新计算样本均值，更新聚类中心。然后取下一样本，重复操作，直至所有样本归入相应类中。 三、判断聚类是否合理 采用误差平方和准则函数判断聚类是否合理，不合理则修改分类。循环进行判断、修改直至达到算法终止条件。(NewK-means clustering algorithm ，Divided into the following several steps: A, initialize clustering center 1, according to the specific problems, from samples with experience selected C a more appropriate focus the sample as the initial clustering center. 2, with former C a sample as the initial clustering center. 3, will all samples randomly divided into C, calculate the sample mean, each the sample mean as the initial clustering center. Second, initial clustering 1, according to the sample into the nearest principle clustering center represents the class. 2, as this, take the its recent as clustering center of that category, recount the sample mean, update clustering center. And then taking off, as this, repeated operation until all samples into the corresponding class. Three, judge clustering is reasonable Adopt error squares principles function cluster analysis.after clustering whether reasonable, no reasonable criterion revisio)

说明：  压缩包内含有灰度变换，直方图均衡算法以及自适应直方图均衡算法，用于图像融合前处理环节，可用于图像增强，突出细节特征，可使用(The compression package contains gray-scale transformation, histogram equalization algorithm and adaptive histogram equalization algorithm, which can be used in the pre-processing of image fusion, image enhancement, highlighting the details, and can be used for image fusion.)

关于自相关函数的载波估计，以归一化估计标准差为性能量度源码(With regard to the autocorrelation function of the carrier estimated that, with the normalized standard deviation of the performance measure is estimated source)

这是关于功率谱的Matlab仿真程序，其中有AR、MA、ARMA三种模型的源代码，相关函数的源代码、功率谱的源代码等等。(This is on the power spectrum of the Matlab simulation program)

说明：  这是matlab中进行矩阵LU分解的代码。是一个包，集合了模拟LU分解所需的函数文件。(A function for matrix LU factorization.This is the first function.There are another three function named "bslashtx","forward","backsubs".)