threephase-pll

四阶龙格库塔法解常微分方程组 四阶龙格库塔法解常微分方程组(4-Runge-Kutta)

asr.matlab 有關語音辨識應用於與matlab語言(about the speech recognization for matlab)

关于自适应反步控制的双螺旋桨自动靠泊文献，最新的(The auto-berthing of a ship requires excellent control for safe accomplishment. Crabbing, which is the pure sway motion of a ship without surge velocity, can be used for this purpose. Crabbing is induced by a peculiar operation procedure known as the push-pull mode. When a ship is in the push-pull mode, an interacting force is induced by complex turbulent flow around the ship generated by the propellers and side thrusters. In this paper, three degrees of freedom equations of the motions of crabbing are derived. The equations are used to apply the adaptive backstepping control method to the auto-berthing controller of a cruise ship. The controller is capable of handling the system nonlinearity and uncertainty of the berthing process. A control allocation algorithm for a ship equipped with two propellers and two side thrusters is also developed, the performance of which is validated by simulation of auto-berthing)

银行贷款的分期还贷模拟：设每月月末贷款余额B（k）为月初全额与月利息的和再减去本月末的还贷额P（k(DFGVFGGG)

从互联网上搜索并下载至少3个英文原版TXT格式小说，设计程序统计每个小说中26个英文出现的次数，所占百分比。 根据程序输出结果分析莫尔斯码对各英文字母设计的编码的合理性。(Search and download from the Internet at least 3 TXT format, original English novel, the novel design process statistics for each of 26 English and the number of occurrences percentage. According to the procedure output of Morse code letters on the design of the code is reasonable.)

说明：  lu 分解 b样条曲线，贝齐儿曲线等等的 matlab实现，非常实用(decomposition b-spline curves, curve gemfibrozil abuse etc. Matlab achieve very practical)

Fingerprint source code

说明：  matlab编写的动态跟踪程序，可用USB摄像头来实现(Dynamic tracking program written in matlab)

说明：  （1）应用9×9的窗口对上述图象进行随机抽样，共抽样200块子图象； （2）将所有子图象按列相接变成一个81维的行向量； （3）对所有200个行向量进行KL变换，求出其对应的协方差矩阵的特征向量和特征值，按降序排列特征值以及所对应的特征向量； （4）选择前40个最大特征值所对应的特征向量作为主元，将原图象块向这40个特征向量上投影，所获得的投影系数就是这个子块的特征向量。 （5）求出所有子块的特征向量。 ((1) the application of 9 × 9 window of these images at random, a total sample of 200 sub-image (2) all sub-images according to out-phase into a 81-dimensional row vector (3) all 200 lines for KL transform vector, derived its corresponding covariance matrix of eigenvectors and eigenvalues, in descending order by eigenvalue and the corresponding eigenvector (4) a choice to 40 corresponding to the largest eigenvalue eigenvector as the PCA, the original image block to the 40 feature vectors on the projection, the projection coefficients obtained by this sub-block eigenvector. (5) calculated for all sub-block eigenvector.)

利用TV算法实现两幅图像的融合，融合规则采用最大值选取规则，测量矩阵采用傅里叶星型抽样模型(TV algorithm using two images of fusion, fusion rule with the maximum selection rule, measurement matrix Fourier sampling model star)