enframe

灰度扩展及灰度图像伪彩色化：灰度值在0～20之间显蓝色，20～40之间显绿色，40～255显红色。 (Gray-scale images of pseudo-color: gray-scale value between 0 to 20 Hin blue, between 20 to 40 green, 40 ~ 255 marked in red.)

Three phase high frequency isolated DC-DC converter (published in ELSEVIER)is simulated under symmetrical open loop control. It provides Low voltage conversion ratio, isolation, good regulation with fast dynamic response

粒子群优化的kriging近似建模程序包DACE-PSO，matlab程序，比传统的dace程序设置更少的参数(PSO kriging approximation modeling package DACE-PSO, matlab program package than traditional dace advantage: without determining Sigma parametersdetermine the Sigma parameters)

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)

用matlab实现预测的神经网络代码，很实用(Using matlab implementation of the neural network prediction code, a very practical)

本代码在matlab环境下运行，从而出现日历和时间。(Calendar and time display)

对某一标准图像进行二维Mallat小波的3级分解，获得小波高/低频系数，分别 用低频分量LL1、LL2、LL3的小波系数进行图像重建，分别计算这三种情况 和原始图像比较的PSNR。(A standard image 3 2D Mallat wavelet decomposition, wavelet high/low frequency coefficients , respectively Low frequency component LL1 , LL2, LL3 wavelet coefficients for image reconstruction, respectively, to calculate the three And compared to the original image PSNR. )

can be usefull it report on OFDM principle and basic operation

说明：  bpsk仿真程序，仿真ber（误码率）等性能(bpsk simulation, emulation ber (bit error rate) and other properties)

Z-N法计算控制器参数， 绝对好用 很经典的算法(ZN method to calculate the controller parameters, absolutely easy to use the classic algorithm)