Karhunen-LoeveDecompositionforFaceRecognition

多天线人之中继网络的研究，很好的一篇论文，我自己受益匪浅(The multi-antenna relay network of people, very good paper, I benefited)

matlab 智能算法30例介绍，其中有背景，分析，程序，供大家参考。(matlab introduce intelligent algorithms 30 cases, including the background, analysis, procedures, for your reference.)

bullet through the wall

研究表明，构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时，离散 余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵，所以离散余弦变换矩阵与自然图像的 K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角 阵，即除了对角线元素以外，其它很多元素都近似为0，并且在左上角集中了主要能量。这 反映了自然图像大部分区域变化不大，亮度突变只占少数，即图像能量以低频成分为主的特 性。通过变换后的量化，舍弃对视觉效果影响较小的次要信息，可达到进一步的压缩效果。 虽然从去相关性能的意义上讲，DCT是一种次于K一L变换的准最佳变换，但是从算法实现的角度来看，DCT则远远优于K一L变换。首先，当图像的分块大小确定后，DCT的变换矩阵也就随之确定了，不随输入信号的统计特性变化而变化 其次，二维DCT能够分解成两次一维DCT，有利于硬件实现。 (Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect. Although from related to the performance of the sense, DCT is a kind o)

拉格朗日插值matlab程序，不是自带函数(laglangri matlab pro)

采用数据拟合法进行的高斯白噪声信道下的信噪比估计，程序中有经典summer法以及本人自己拟合的二阶和三阶参数，适用于不同的信噪比范围，望大家一起交流(By data fitting of the Gauss white noise channel SNR estimation, the program in the classic summer method as well as my own fitting of the two order and three order parameters, applicable to different SNR range, hope everybody exchanges together)

关于计算在Klobuchar模型下的穿透点的电离层延迟和格网电离层延迟(Under Klobuchar model on the calculation of the penetration points ionospheric delay and grid ionospheric delay)

matlab recognition algorithm

能够实现LL(1)预测分析过程的源码，有测试用例(To achieve LL (1) Prediction of the process of source code, there are test cases)

对信号进行强制去噪 默认阈值去噪和给定软阈值去噪(The signal is forced denoising the default threshold denoising and given soft threshold denoising )