非二元 ldpc 码的源代码

handwritten digit recognition

用matlab实现矩阵的高斯分解，A=LU,A为下三角，U为上三角(Gauss decomposition)

OFDM信道的参数估计模拟。QDPSK调制，采用训练信号。(OFDM channel estimation simulation.)

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)

功能描述：vblast的sic检测算法vblast的sqrd.m检测算法(demodulation for IEEE802.11a)

是本科毕设的题目，有均匀线阵的CRB曲线，旋转机械二维全息谱计算，重要参数的提取，对信号进行频谱分析及滤波，数学方法是部分子空间法。

各种数字调制的GUI程序ASK,FSK,2PSK,QPSK。(ASK,FSK,2PSK,QPSK)

PCA algorithm in matlab

vo分解模型用于分解图像的纹理和卡通部分的matlab源代码(The vo decomposition model for the decomposition of the image texture and cartoon part of the Matlab source code)

这是关于图像处理的一些程序，能够在在MATLAB环境下直接运用。(This is the image of some of the procedures in the MATLAB environment direct use.)